Guangzhou Haike Electronics Technology Co., Ltd.
E-mail: eva@gzhaike.com
Address: 613th Tainan Rd, Dongchong Town, Nansha District, Guangzhou, 511453, PR. China.
There are many kinds of air filters and air purification devices available for home use. HEPA filters can be used in cleaning devices, air filters, portable air cleaners, whole-home fan systems, heating and cooling units, and more. The goal is to filter tiny particles from the air as it passes through these devices.
HEPA filters aren’t the only way to do this, but they are recognized as highly effective, filtering some of the smallest particles from the air. Other examples of filters include:
Ultra-HEPA filters or ULPA filters. These can trap up to 99.999 percent of particles 0.3 microns or smaller.
Electrostatic filters. These trap particles using a small static charge, which helps the particles stick to the filter.
Electrostatic precipitators. These filters use metal plates or wires to attract particles with an opposite charge. They can often be washed and reused.
Ionization. These filters rely on a small charge that emits a magnetic-like attraction to particles in the air. This type of filtration may release ozone gases and could cause irritation for people with respiratory diseases.
There are so many options when it comes to home air cleaning, and the choices can become overwhelming. While the EPA does not certify or recommend particular types of air filters, the agency does offer advice for selecting the right product for you. These recommendations were the basis of our selection process and include the following considerations.
Look for portable filters designed for the room size you are trying to use them in. Generally, the clean air delivery rate (CADR) score of your filter should be equal to about two-thirds of the area in the room.
Ozone is a gas that is released during some air purification processes. While ozone gas is meant to clean and sanitize the air, it’s also considered a pollutant that can cause irritation and damage to the lungs when inhaled. Air cleaners that use ozone are generally intended for rooms that are uninhabited at the time of use. They are not for use in confined spaces when you are present. No government agency in the United States has approved any ozone generators as air cleaners in homes.
While EPA doesn’t set rules for these filters, there are industry leaders that set standards for HEPA filtration. When purchasing a filter, it should meet one of the following criteria:
designated HEPA filter
CADR rated
the manufacturer states the product filters most particles smaller than 1 micron
KJ2000F is specially designed for large rooms and the whole family. The 2000 CADR parameter is unique in the entire household air purifier market. It covers an area of 2580 square feet and the air exchange rate is very fast, 2000 sq ft rooms change air only takes 5.6 minutes, and configured HEPA filter and 4-fold filter keep the air fresh in your room.
Commercial HEPA Filter Air Purifier KJ2000 gets the job done. Whether you have a dusty warehouse or a smoky bar, our products get rid of indoor pollution. Our HEPA filters remove the smallest particles from the air. They even remove nano-particles (COVID size). Our electrostatic filters remove dust, smoke, and many other common types of indoor air pollution. The carbon filters remove odors, gases, and VOCs.
Most commercial air cleaners advertised are nothing more than oversized home air purifiers. They boast things like 400 CFM and 5 types of filtration. These are OK if you are cleaning the air in the clubhouse lounge. They work great in an oversized living room. Real commercial environments need a real commercial air purifier. Don’t be fooled by ozone generators they are not commercial air cleaners.
KJ2000 commercial products are designed to be used where you do business. If you have a shop where you fix cars or fabricate steel, use LakeAir. Manufacturing processes cause indoor air pollution. Clear the smoke and dust with a machine that is made to clean really dirty air. Dry cleaners and printers emit fumes and VOCs that need to be treated with large amounts of activated carbon. Real commercial locations require you to use real commercial air purifiers.
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Diesel exhausts are one of the most prolific sources of outdoor pollution. The particle sizes range from around 1 - 10 microns, with the largest volume being in the range of up to 2.5 microns. Hence, you will often see traffic pollution referred to as 'PM2.5' in the media and on marketing material relating to air purifiers. PM2.5 ( particles with a diameter of 2.5 microns or less) are also released into our air from such common sources as log burners, coal fires, and industrial processes. These particulates are the ones you are often able to see as 'haze' or 'smog' in big cities around the world.
This is a key question! In short, yes, but some are more effective than others. The most common type of air purifier used to remove pollutants from traffic and other PM2.5 sources is one with a Hepa filter inside (Hepa stands for High-Efficiency Particulate Arrestor). The grey area however is that there are different ‘grades’ of Hepa filter. Although most of them are perfectly capable of filtering out particles as small as 0.3 microns which more than covers the troublesome PM2.5 category, some HEPA filters are actually able to remove particles as small as 0.1 microns, meaning they remove much more of the even more hazardous pollutants missed by standard ones.
Not quite. The HEPA filter is only part of the equation. As we mentioned at the beginning of the article, the other big issue is removing the accompanying gases. Remember, the HEPA filter does not deal with the gases, it only removes particles (PM2.5).
H13-H14 HEPA is within the highest tier of HEPA air filtration and are considered medical-grade. “A HEPA grade of H13 can remove 99.95% of all particles in the air measuring 0.2 microns in diameter, while a HEPA grade H14 removes 99.995%,” says Nagl.
HEPA filters are the most commonly used filtration technology in both commercial and residential settings. It is partly due to its effectiveness at capturing 99.97% of particles 0.3 microns and is efficient in commercial and residential spaces. A True HEPA filtration device or filter is the only type of HEPA filter that truly conforms to the DOE standard for HEPA filtration, has the highest efficiency, and hits the 99.97% threshold. If the HEPA filter does not meet the DOE's standards for HEPA filtration, then it is not considered True HEPA. While the filter could perhaps still capture particles sized 0.3 microns and capture a high percentage of them, unless confirmed a True HEPA, it cannot claim to meet the DOE HEPA standards.
The general standard HEPA grade ranges from H10-H12 and can trap 99.995% of particles in 0.3microns diameter. The H13 falls under the medical grade which is commonly used in medical and health facilities that are more exposed to dangerous toxins and have a greater particulate retention rate.
HEPA filters are used in applications that require contamination control, such as the manufacturing of hard disk drives, medical devices, semiconductors, nuclear, food, and pharmaceutical products, as well as in hospitals, homes, and vehicles.
It is an acronym for "high-efficiency particulate air [filter]" (as officially defined by the U.S. Dept. of Energy). This type of air filter can theoretically remove at least 99.97% of dust, pollen, mold, bacteria, and any airborne particles with a size of 0.3 microns (µm).
Components of a HEPA Filter. HEPA filters are made of boron silicate microfibers formed into a flat sheet by a process similar to making paper. Flat filter sheets are pleated to increase the overall surface area. Pleats are separated by aluminum baffles which direct the airflow through the filter.
H13-H14 HEPA is within the highest tier of HEPA air filtration and is considered medical-grade. “A HEPA grade of H13 can remove 99.95% of all particles in the air measuring 0.2 microns in diameter, while a HEPA grade H14 removes 99.995%,” says Nagl.
In short, it depends on what you're trying to accomplish or alleviate. For people with severe allergies, HEPA filters can help trap pet dander and other larger allergens. If you're simply attempting to freshen up your air, then the price tag may not be worth it. In other words, air purifiers aren't a cure for everyone.
How much does a HEPA filter cost? HEPA filters vary in cost and range from $16–$95 depending on quality, estimated longevity, and manufacturer. Air purifiers that rely on HEPA filters range from $50–$1,000 depending on size, quality, and projected coverage area.
HEPA filters cannot be washed with water and soup. Usually, people do ask if they can wash a HEPA filter and how to actually clean it. In short, HEPA filters are very fine filters that capture very fine particles. It’s almost impossible to wash out these tiny particles. When the HEPA filter is saturated, there is only one option: You have to replace it.
The best place to put an air purifier is in a room equal to or smaller than its CADR rating. If a device can purify the air effectively in a room equal to or smaller than 250 square feet, you shouldn't put it in the main hub of a large house. As for locations within those rooms, you'll want to make sure the purifier's intake and output aren't blocked by walls or furniture. That means out in the open, and ideally in locations where there is consistent airflow to help with cycling -- which probably means near doorways or vents.
Air purifiers generally do what they say: they filter particulate out of the air effectively -- especially if they use a HEPA filter. But most of us already have a mechanism to filter the air effectively: the respiratory system. As Dr. Alex Berezow, a microbiologist and vice president of Scientific Communications at the American Council on Science and Health, pointed out in a blog post, "Living within the tiny air sacs in your lungs (called alveoli) are immune cells known as macrophages. These "big eaters" gobble up bacteria, viruses, fungi, and whatever other debris happens to find its way into the lungs."
In short, air purifiers work, but unless you live in a particularly polluted environment or you or your children are immuno-compromised, you probably don't need one.
HEPA filters vary in cost and range from $16–$95 depending on quality, estimated longevity, and manufacturer. Air purifiers that rely on HEPA filters range from $50–$1,000 depending on size, quality, and projected coverage area.
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