Open the Window With the Air Conditioner On? You're Only Half Right!

It becomes a fundamental configuration for many families to have an air conditioner during the summer season, while a common question also occurs: Is it possible to open the window during the operation of the air conditioner?

Some people find it too stuffy with the windows closed and need some fresh air; others insist that if the windows are open, the air conditioning is wasted. Actually, both of them are half right.

wall mounted air conditioner

It is true that the escape of the cold air is not allowed.

The air conditioner function is simple: it circulates the interior air to cool or heat. Once the window is open, the exchange of interior and exterior air continues, and the cold air escapes rapidly, and finally the air conditioner operates at a high burden as a result of high power consumption but low cooling effect.

So from the energy-saving view, it needs the window closed to ensure the cooling effect.

Non-ventilation is not allowed as well.

Human breath (CO₂), furniture smell, humidity smell, etc. are accumulated together. With no ventilation, the indoor air quality will be worse and worse.

Have you ever experienced headaches, dry throat, and stuffiness after a long stay in the air-conditioned room?

It was not the problem of your air conditioner, but the lack of fresh air.

The right way is to open the window regularly

To keep a comfortable air-conditioned room with fresh air, here are the tips:

Open the windows for 10-20 minutes in the early morning and evening, then wait for the air to refresh before closing the windows and turning on the air conditioner.

Avoid opening windows during the hottest times of the day, as this will put excessive strain on the air conditioner.

If the air quality outside is poor, use a fresh air system, air purifier, or air conditioner with a ventilation function.

So, an air conditioner and an open window can coexist together, but it needs regulation and wisdom. Using the air conditioner wisely can keep a good coolness and health without the waste of energy.

If you want to know the selection plan of KRG's full range of air conditioners (wall-mounted AC, floor standing AC, etc.), please leave a message or contact our distribution consultant. We will match you with the most suitable product and application scenario solution.

Is It Harmful To Sleep With An Air Conditioner On?

With the hot temperature in summer, many people usually sleep with the air conditioners turned on during the night to gain a cool and pleasant sleeping environment. But people also worried that it would harm our health with an air conditioner on during the night. Now we are here to talk about this question and help all of us to understand the pros and cons of sleeping with an air conditioner on.

1. Pros on sleeping with an air conditioner on

Improve sleeping quality

A hot environment can make it difficult for the human body to fall asleep. Turning on the air conditioner can lower the room temperature, promote body relaxation, and improve sleep quality.

Prevent heat stroke and dehydration

High temperatures in summer can easily lead to heat stroke and loss of body water. The air-conditioned environment can help prevent these problems.

Reduce mosquito interference

When turning on the air conditioner, doors and windows are usually closed to reduce the entry of mosquitoes and ensure a quiet and safe sleeping environment.

2. Cons on sleeping with an air conditioner on

Dry air

Long-term operation of the air conditioner will reduce the indoor humidity, causing dry skin, sore throat, and even a chapped nasal cavity.

Excessive temperature difference

If the air conditioner temperature is set too low and the temperature difference with the outdoor temperature is too large, it is easy to cause colds, muscle stiffness, and other problems.

Bacteria and virus breeding

Dirty filters and ducts make it easy to accumulate dust and bacteria, which influences our respiratory health.

3. How to use the air conditioner scientifically during sleeping

Reasonable temperature adjustment

26℃ and around is a recommended temperature, which keeps it cool and pleasant and avoids large temperature differences.

Eco/Time mode

You can set the air conditioner to turn off at a fixed time to avoid direct blowing all night long and reduce the burden on the body.

Keep the indoor humidity

A humidifier or a bowl of water can maintain the interior humidity and prevent the air from being too dry.

Clean the air conditioner regularly

Clean the filter and the inside of the air conditioner to ensure the air from the evaporator is clean and hygienic.

Avoid direct blowing on the body

It is recommended to adjust the wind direction so we could avoid the direct blowing on our head and body and reduce the risk of colds.

Air conditioner

Sleeping without turning off the air conditioner in the summer will not lead to serious harm to our bodies. As long as it is used correctly and reasonably, you will enjoy a comfortable and pleasant sleep. The key is to pay attention to adjusting the temperature, keeping the air moist, and cleaning the air conditioner regularly to protect the health of ourselves and our family.

We are a professional air conditioner manufacturer in China. If you have any questions, please feel free to contact us!

Advantages of Empty Aerosol Can from Guangdong Sihai

empty aerosol tin can factory

Guangdong Sihai Iron-Printing & Tin-Making Co., Ltd. is a factory specializes in aerosol industry over 27 years. Our factory mainly manufacture empty aerosol tin can, top& bottom and provide iron-cutting and iron-printing service. Also we can help to supply aerosol valve & button and plastic cap.

The belows are the advatnages of our empty aerosol can:

1. good sealing: aerosol tin can is made of high-quality tinplate, a good sealing properties material, which can effectively prevent aerosol contents from leaking, ensuring product quality and safety.

2. Strong pressure resistance: aerosol tin spray can withstands a certain pressure, which is suitable for packaging aerosol products with high pressure, popu;larly used in perfume, insecticide, air freshener spray and so on.
3. Sturdy and durable material: with its high strength and hardness, tinplate can resist external collision and extrusion to protect the aerosol contents from damage.
4. Good printing effect: the colorful patterns and words can be printed on the surface of aerosol tin cans , which shows the aesthetics and attractiveness of the products.
5. Environmentally friendly and recyclable: due to its recyclability, the discarded aerosol tin cans can be recycled and reused to reduce pollution to the environment.
6. Lower cost: compared with other materials for aerosol packaging, aerosol tin can is less costly and have higher cost performance.

Is The Office Air Conditioner Always Cold? How Should You Adjust The Air Outlet?

In summer and in offices, there are always occasions when a colleague says it's too hot and adjusts the air conditioner to a lower temperature, and at the same time another colleague claims it's too cold. There are always people who are not satisfied with the air conditioning temperature. Actually it's not a matter of the temperature but the position of the air outlet.

Now let's explore how to adjust the air outlet and fan speed properly and achieve a comfortable and noncontroversial office air conditioning environment.

I. Why do the offices easily have uneven cooling and heating?

Direct airflow

Cold air blowing directly at the head, back, or legs can easily cause neck and shoulder pain, colds, and even "air-conditioning sickness."

Complex spatial layout

Offices are often open spaces, so employees seated near the air outlets tend to feel cold, while those farther from the air conditioner don't feel cool enough.

Improper air speed settings

When the air speed is too high, the cold air spreads widely but feels strongly directed. When the air speed is too low, remote areas don't receive effective cooling.

II. Proper and pleasant adjustment of air outlet

Avoid direct airflow

Adjust the airflow blades upward or diagonally upward to allow the cool air to glide along the ceiling and then naturally diffuse downward, creating a "soft cooling" effect that provides a cool feeling without causing discomfort.

Turn on the left-right swing function

Use the automatic swing function to distribute the cool air more evenly and avoid overcooling in some areas. If the air conditioner supports both up-down and left-right swing, that's even better.

Use the fan speed to control the cooling sensation

Use medium-high settings during strong midday sunlight for faster cooling. Once the temperature stabilizes, adjust to low or silent mode for comfortable and quiet operation.

III. A proper air conditioner reduces arguments

Many modern offices are moving away from traditional wall-mounted air conditioners and are now opting for ducted or ceiling mounted AC units. These units can be designed to suit the specific layout, making it easier to control the direction and intensity of the airflow.

For example, KRG offers a variety of customized air vent solutions for office users. Our ceiling cassette air conditioners support 360° air delivery, independently controllable airflow angles, and feature silent fans and energy-saving modes, effectively solving the problem of overheating while some employees are cold.

IV. Additional Practical Suggestions

In areas exposed to direct sunlight, draw curtains appropriately to reduce heat load.

Move your seat slightly away from drafty areas to significantly improve comfort.

Providing shawls or light jackets for cold-sensitive colleagues is a human touch in the office.

The real reason behind office air conditioning's "hot/cold war" is poor airflow and inadequate user-friendly adjustments. Instead of repeatedly adjusting the temperature, it's better to adjust the air vents. Properly setting the airflow direction and speed, combined with appropriate air conditioning equipment and user-friendly management, can ensure every employee feels just the right amount of cool.

Achieve Professional-Looking Nails at Home

Do you want to achieve stunning nails with a professional touch without leaving the comfort of your home? With the right tools and techniques, you can create salon-like results at your fingertips. In this article, we will explore the key steps to achieving professional-looking nails and discuss some essential products such as the professional nail drill machine, drill machine nails, nail gel lamp, and UV nail curing lamp.

Preparing Your Nails
Before delving into any nail art, it's crucial to prepare your nails properly. Start by shaping them to your desired length and style using a nail file. Use a professional nail drill machine to gently remove any existing nail polish, debris, or dead skin around the cuticles. This step ensures a clean canvas for your nail art.

electric nail file drill machine

Applying Nail Extensions
If you desire longer nails, nail extensions can be a game-changer. To apply nail extensions, you can use a drill machine nail kit that includes plastic tips, adhesive, and a nail file. Select the appropriate size of nail tips and glue them onto your natural nails, ensuring a secure fit. Trim and shape the extensions to achieve your desired nail length, and then use the nail drill machine to smooth out any rough edges.

nail drill machine

Enhancing with Nail Gel and UV Curing
Now that your nails are prepped and extended, it's time to add some color and durability. Nail gel is a popular choice for achieving long-lasting, chip-resistant nails. Using a nail gel lamp or UV nail curing lamp, you can cure the gel and achieve a perfect finish. Apply the gel polish in thin, even layers and cure each layer under the lamp as per the product instructions. This process ensures the gel polish hardens and stays intact for an extended period.

Finishing Touches
To complete your professional nail look, pay attention to the finishing touches. After curing the final layer of gel, use a nail file or buffer to smooth out any imperfections and create a uniform surface. Apply a topcoat for added shine and protection. Take the time to moisturize your hands and cuticles and apply a cuticle oil to keep them nourished and healthy-looking.

Achieving salon-quality nails at home is now within your reach. The key is to have the right tools, such as a professional nail drill machine, drill machine nails, nail gel lamp, and UV nail curing lamp. With these essential products and the right techniques, you can create stunning and long-lasting nail art. As a bonus, our company also offers OEM and ODM services, with low MOQ options, as we have our own factory. Start exploring the world of professional nail care and express your unique style with confidence.

EVA Case Buyer’s FAQ Everything You Need to Know Before Ordering

If you're considering ordering custom EVA (Ethylene Vinyl Acetate) cases for your products, you're likely to have some questions. At Yisi Packing, we specialize in custom EVA case solutions for a wide range of industries. To help you feel confident and informed, we've compiled answers to the most frequently asked questions from our customers.

✅ 1. What Is a Custom EVA Case?

A custom EVA case is a lightweight, semi rigid case designed for protection, portability, and branding. EVA material is shockproof, waterproof, and highly customizable, making it ideal for electronics, tools, medical devices, cosmetics, and more.

✅ 2. What’s the Minimum Order Quantity (MOQ)?

Our typical MOQ is 500 pieces per design. However, for initial testing or sample orders, we may offer flexibility depending on your needs. Feel free to contact us to discuss your project in detail.

✅ 3. Can You Customize the Size, Color, and Logo?

Absolutely! As a leading OEM/ODM EVA case manufacturer in China, we offer full customization:

Size and shape based on your product
Color options for case material and zipper
Custom logo printing, embossing, or rubber badges

✅ 4. What Is the Production Lead Time?

Production usually takes 25–35 days, depending on the complexity and order quantity. We also offer sample development within 7- 10 days so you can approve the design before full production begins.

✅ 5. How Do You Ensure Quality?

We have a strict quality control system, from raw material selection to final inspection. All products are checked for durability, functionality, and appearance before shipping. Quality is at the core of everything we do.

✅ 6. Do You Ship Worldwide?

Yes! We have experience exporting custom EVA cases to over 30 countries. We can ship by sea, air, or express courier, depending on your timeline and budget.

✅ Ready to Get Started?

If you’re looking for a reliable EVA case manufacturer in China, Yisi Packing is here to help. Contact us today for a free consultation or quotation, and let’s create the perfect case for your brand.

📧 Email: info@packingyisi.com
🌐 Website: www.packingyisi.com

Why Counting Wax is a Popular Office Essential

Counting wax, also known as banknote counting wax or money counting wax, is a specialized office accessory designed to facilitate smooth and efficient cash handling. Its unique formula provides just the right amount of friction to fingertips, allowing users to quickly separate and count banknotes, receipts, or documents without slippage.

money counting wax

Why is FOSKA banknote counting wax so popular？There are some key reasons for its popularity.

The wax’s slight tackiness speeds up manual counting by preventing paper sheets from sticking together or slipping, reducing errors in high-volume tasks. Secondly, repeated counting can strain fingers, but counting wax minimizes finger friction, offering a more comfortable experience during prolonged use. There are 20g of Foska banknote counting wax, and it can last for months, this makes it a budget-friendly alternative to electronic counters or disposable finger cots. At the same time, it’s lightweight fits seamlessly into cash drawers or pencil cases, always ready for use.

Fingertip Moisten Wax

Beyond currency, it’s useful for sorting thin papers, or even sticky notes, proving invaluable in banks, retail, and accounting offices.

Banknote counting wax

Why is Foska's creative outline scratch painting so appealing？

Our Foska’s outline scratch paintings have 9 scratch sheets and 1 scratch pen. Creative outline scratch paintings have different series of designs for your choice. The size of creative outline scratch painting is 135x185mm.

Scratching creates a strong visual contrast through the contrast between black background and bright colored scratches, making the work highly attractive. Whether it's abstract patterns or concrete themes, this high contrast expression can quickly capture children's attention.

Foska’s outline scratch paintings

Creative outline scratch painting, as a unique form of artistic expression, not only has visual impact, but also brings various growth benefits to children.

1. Scratching encourages children to create freely, revealing hidden colors and textures through scraping, and cultivating unstructured thinking.

2. Scratching lines of different depths helps cultivate hand muscle control and has a positive impact on writing and drawing abilities

3. Scratching requires precise control of force and direction, similar to the "debugging" process in programming, which can exercise children's fine motor skills and concentration.

Creative outline scratch painting

Foska's colorful scratch painting is a highly distinctive art form of scratch painting, mainly created by scratching the dark surface to expose the bright bottom layer.

colorful scratch painting

Why is Gift Wrapping Paper So Popular in Stationery Stores

Gift wrapping paper is mainly used to wrap and decorate various gifts. Through bright colors, various patterns and handcrafting, it endows gifts with beauty and a sense of ceremony.Colored packaging paper with patterns of flowers, letters and balloons makes the gift look more beautiful. Gifts wrapped in exquisite craft paper will also make the recipients feel that you are very sincere.

gift wrapping paper

Why is gift wrapping paper so popular in stationery stores? The main reasons are as follows.

The main target audience of gift wrapping paper is teenagers. They are at an age that requires constant socializing, and there are a lot of scenarios in daily life which they need to exchange gifts with each other. The birthday party is one of the most typical scenes. According to the survey, more than 80% of middle school and college students will prepare birthday gifts for their classmates.They like to carefully wrap the prepared gifts before giving them to their friends, which will be full of sincerity.

colorful packaging paper

Stationery stores around schools are the main places for teenagers to purchase stationery. These stores usually display wrapping paper together with stickers and other items used by students because it will more likely to attract students' attention.

Moreover, teenagers are very fond of doing handicrafts. They also buy beautiful handmade paper full of festive atmosphere in their daily life to decorate their rooms or prepare gifts for friends.Therefore, all kinds of handmade paper and colorful packaging paper in the stationery store sell very well.

Why is Paper Fasteners still indispensable?

In any office, school, or home, keeping papers in order is essential. Paper fasteners are a simple yet effective solution for binding sheets of paper together. They come in various types, each with its own unique features and uses.

What is a Paper Fastener?

Paper fastener is a small metal or plastic device used to securely hold together sheets of paper, it is one of the most widely used office supplies in the world. Unlike staples, which puncture the paper, paper fasteners simply clip over the edge, keeping documents together without damaging them. This makes them ideal for temporary binding or when you need to preserve the integrity of printed materials.

Type of Features of Foska Paper Fasteners

Metal Paper Fasteners: Foska Paper Fastener made of corrosion-resistant, tempered, and electroplated steel, with excellent strength and durability. Firmly binding ability, it can bind 35mm thick paper, approximately 350 A4 sheets of paper, and will not slip easily. In addition to the most commonly used 8cm hole spacing, we also have 7cm hole spacing paper fasteners suitable for some South American countries.

metal paper fasterners

8cm plastic Paper Fasteners: Foska file fasteners are made of plastic with smooth surface, lightweight but durable, and can be used for a long time. Binding firmly, can bind 1-350 sheets of paper, suitable for documents of different thicknesses, easy to deform and bend freely and bright colors make classification clearer.

plastic paper fasterners

Golden Paper Fasteners: Foska gold metal fasterners adopts high quality raw material, keeps it strong and durable while using. Different sizes are suitable for paper of different thicknesses. This type wins lots of good feedback from clients.

golden paper fasterners

Why Use Paper Fasteners?

1. Non-Damaging : One of the biggest advantages of using a paper fastener is that it doesn’t puncture or tear the paper, making it perfect for documents that need to be kept in pristine condition.

2. Reusable : Unlike staples, paper clips can be easily removed and reused multiple times, making them a cost-effective and environmentally friendly choice.

3. Versatile : Available in a wide range of sizes and styles-from the classic jumbo clip to decorative and colorful designs-paper fasteners can be both functional and stylish.

3.Easy to Use : No special tools or equipment are needed. Simply slide the fastener over the edge of your papers and you're done.

While it may seem like a minor detail, the right paper fastener can make a big difference in how you manage your paperwork. Whether you're organizing a report, sorting through receipts, or just keeping your desk neat, the paper fastener is a simple yet powerful ally in the office.