The Best Air Purifier for 2021
Development History
Air purifiers originated for firefighting purposes when, in 1823, John and Charles Dean invented a new smoke protection device that allowed firefighters to avoid smoke while fighting fires. In 1854, a man named Johns Tenhouse built on the inventions of his predecessors: he discovered that if charcoal was added to the air filter it could filter out harmful and toxic gases from the air.
During World War II, the U.S. government began researching radioactive materials and they needed to develop a way to filter out all the harmful particles to keep the air clean so scientists could breathe, so the High Efficiency Filter (HEPA) was born. As we entered the 1980s, the focus of air purification had shifted to air purification methods such as home air purifier.
Working Principle and Types
Air purifier usually consists of fan and air filter system, and its working principle is: the fan inside the machine (also called fan) makes the indoor air circulate, and the polluted air is removed or adsorbed by the filter inside the machine to clean and purify the air. Air purifiers are generally wall-mounted, hanging, ceiling and floor type; according to air purification technology is divided into: HEPA air purifier, activated carbon air purifier, electronic air purifier, ultraviolet air purifier, clean room air purifier, negative ion air purifier, ion wind air purifier, ozone air purifier, etc.
Reasons for Use
1. Home Fires
According to google trends, in the past year of 2020, the keyword “Home fire” can be searched for, and its hotness remains above 50 points in most of the world. The specific trend of the change of the heat value is that it starts to rise in spring, peaks in summer, and gradually declines in winter.
Home fires have always been a popular topic. Dense crowds, unreasonable interior design and improper use of electrical appliances can all contribute to the occurrence of home fires. Therefore, it is vital for every family to avoid fires properly.
2. Air Pollution
In the 21st century, urbanization has accelerated significantly, and the emergence of smart homes has saved a lot of people’s time spent on household chores, but with the increase in per capita income and the importance of health, people’s demand for air quality has become higher and higher. According to the World Air Pollution – Real Time Air Quality Index map, except for the Americas, where the air quality index is slightly higher, Europe, the Middle East and Asia all have very low air pollution indices, and the air pollution situation is very severe. I can see it that high quality air is always in high demand.
3. Pet Hair
The United States has the largest and most developed pet economy in the world. Data from the American Pet Products Association (APPA) shows that the number of pet-owning households in the U.S. has reached 84.6 million. The penetration rate of household pets in the United States has increased from 56% in 1988 to the current 68%. Of these, 60.2 million U.S. households have approximately 89.7 million pet dogs; approximately 47.1 million households have approximately 94.2 million pet cats.
Asthma is recognized by the medical community as one of the “four most persistent diseases” and “the top 10 causes of death” worldwide. Clinically, asthma can be divided into two categories: endogenous asthma and exogenous asthma. The cause of endogenous asthma is still unclear, while exogenous asthma is mainly triggered by allergens, climate change, drugs and psychological factors. Common allergens are airborne dust, pollen, smoke, perfume, animal hair, clothing fibers, and urine. Some studies have pointed out that indoor air is more dangerous than outdoor polluted air. And a good air purifier can effectively filter pet hair and dust to keep the air at home clean and effectively avoid asthma attacks.
4. Formaldehyde
Moving to a new home is a joyous event, but a new home really isn’t as safe as you might think. The air in a new house can be filled with pollutants and chemicals that remain in the home long after construction is complete. The most common of these pollutants is formaldehyde, one of the most harmful gases to humans, which comes from new furniture and flooring and is known as the indoor “killer”. If people are not aware of this serious hazard, living in this environment for a long time will have a high risk of causing leukemia and in serious cases, death.
5. Cigarettes
The trend over the last fifty years shows that the number of people who smoke is decreasing, but there is still a large percentage of the population who smoke. According to the Aimedia data center, about 35% of men and 6% of women worldwide currently smoke. “Smoking is bad for your health”, this truth is still justified. Long-term exposure to the cloudy environment is harmful to a person’s health. For families with small children, smoking secondhand smoke is more harmful to small children than smoking firsthand smoke. For the health of small children, it is very necessary to let them breathe fresh and clean air.
Air Purifier Recommendation
1/5
Okaysou AirMax8L Air Purifiers
Medical Grade ULTRA-DUO Filtration System – Okaysou AirMax8L Air purifier, a multi-use air cleaner, odor eliminator, air deodorizer, captures 99.97% of air pollutants like dust, pollen, smoke, pet dander and hair, household odors as small as 0.25 microns; also safely breaks down various harmful gases, such as formaldehyde, ammonia, benzene, and VOCs than other 3-stage filters can’t do.
1. 3 Fan Speeds – Allows you to adjust the air intake and output based on your surrounding air to meet the optimum purification performance.
2. 1/2/4/8 Hour Timer – Customizes and schedule 1/2/4/8 hours of operation to satisfy your unique purification needs and save energy.
3. Sleep Mode – Silently purifies air with the noise level of only 22dB, it turns off all lights to create a better sleep environment to ensure your sweet dream.
4. Child-Lock Mode – Simply child-lock button for 3s to lock the control panel, you will not worry about the error operation caused by your curious children or pets any more.
5. Filter Replacement Indicator – The air filter indicator tells you to needed filter changes. Press sleep button for 3s to turn off the indicator light after changing filters.
6. 5-Year Buying Assurance – Longer buying assurance decreases your worry to enjoy a happier clean air experience.
2/5
Okaysou AirMax10L Pro Smart Air Purifier
Medical Grade Dual-Nanois Filtration System – Comes with washable Dual-Filter, 2-in-1 Nanois-Filter, Carbon filter, captures 99.97% of air pollutants like dust, pollen, smoke, pet dander and hair, household odors as small as 0.1 microns; also safely breaks down various harmful gases, such as formaldehyde, ammonia, benzene, and VOCs that other single filter can’t do.
1. Eco Mode: when no pollution is detected, the air purifier will stop working automatically for saving energy consumption.
2. Auto Mode: purifies the air automatically at different fan speeds based on the air quality detected by the smart sensor.
3. Turbo Mode: designed for high pollution conditions; purifies the air at the fastest speed.
4. Air Quality Indicator: 3 color real-time feedback on air quality be the reference for choosing needed modes.
5. 3 Fan Speeds: 1/2/3 / turbo speeds are optional based on needs.
6. Timer: allows the machine to run 1/2/4/8 hours before automatically powering off.
7. Filter Indicator: informs of a filter replacement timely.
8. Child Lock: presses it for 3 seconds to avoid a wrong operation by children.
9. Decibel Level: 24db~51db.
3/5
Levoit Vital 100 True HEPA Air Purifier
The Vital 100’s compact size allows you to save space in your home, while its large air intake makes it effective at trapping pet hair and other intrusive particles.
1. The Vital 100 has a CADR of 130 CFM / 221 m³/h, which is perfect for living rooms, bedrooms, offices, nurseries, and kitchens.
2. Use your Vital 100 with peace of mind. Levoit air purifiers are always 100% ozone free and never use UV-C light or anion purification methods that can cause harm to the user.
3. Washable preliminary filter traps large particles such as pet fur, hair, and lint. Its activated carbon filter absorbs unpleasant odors such as cooking smells or smoke.
4. You can easily turn off the Vital 100’s LED display to create a darker sleeping environment.
5. Create a clean yet peaceful environment undisturbed by your air purifier. The Vital 100 makes as little as 23dB of sound, which is quieter than a whisper.
6. Levoit air purifiers filter airborne particles 0.3 micrometers (µm) in size. Arovast Corporation makes no claims that this air purifier helps eliminate the COVID-19 virus.
4/5
HSP001 Smart True HEPA Air Purifier
The HSP001 Smart True HEPA Air Purifier is designed to purify rooms up to 700 square feet, filtering 100% of the air every hour. A 5-stage HEPA filtration system filters 99.97% of particles as small as 0.3 microns in diameter. These include allergens, dust, pet dander, pollen, odors, smoke, and toxic VOC’s. Beautiful design, smart function, and premium grade HEPA technology makes it the perfect air purifier for your home or office.
1. Air Quality Sensor
2. Smart AUTO Mode
3. In AUTO mode, the fan speeds adjust automatically in response to your surrounding air quality. For example, if you walk into a purified room bringing pollutants from outside in, the HSP001 will pick up the foreign particles and increase the fan speed, lowering the fan speed once the air is clean again.
4. Anion Technology
5. Whisper-Quiet
5/5
Okaysou AirMic4S Medical Grade Air Purifier
Medical Grade H13 True HEPA Filter – Better than True HEPA, AirMic4S is designed for small to medium rooms, bedrooms, offices, nurseries, and kitchens. Use the medical-grade filtration system to capture and reduce up to 99.97% of airborne particles as small as .3 microns, including dust, pollen, pet dander, pet hair, smoke, household odors, harmful gases like formaldehyde, ammonia, VOCs.
1. 3 Fan Speeds – Allows you to adjust the air intake and output based on your surrounding air to meet the optimum purification performance.
2. 2/4/8 Hour Timer – Customizes and schedule 2/4/8 hours of operation to satisfy your unique purification needs and save energy.
3. Sleep Mode – Ultra-quiet operation at just 24dB, AirMic4S offers gentle white noise and turns off all lights to provide you sweet dream.
4. Night Light Mode – Chooses from two blue light settings to create a better sleep atmosphere or turn them off if you are sensitive to light.
5. Smart Change Filter Indicator – The filter indicator alerts you to needed filter changes.
6. Superior Safety – CARB certified – Compliance with California’s strictest safety standards, CE, RoHS certified, and ETL Listed. USA and Canada registered 5-year buying assurance.
