What are air purifiers? What do they do?
An air purifier, often known as an air filter, is a device that removes impurities from the air in a room to improve indoor air quality. These products are often marketed to help allergy and asthma sufferers, as well as to minimize or eliminate smoke and other airborne pollutants.
What is the need for an air purifier?
We are all forced to leave our homes every day to go to work, so we are constantly exposed to harmful air pollutants and there are limited ways to protect ourselves. But once we’re inside, we can use air purifiers to maintain a cleaner, healthier environment for ourselves and our families. Due to recent severe levels of air quality indices (AQIs) across the country, air purifiers have become as necessary as the air itself.
1. Medical conditions such as asthma and bronchitis
Asthma and bronchitis can occur as young as five years old and affect people for the rest of their lives. It can be made worse by irritants like dust, allergens, mold, and animal fur. Using an air purifier makes it possible for people with respiratory disorders to enjoy rooms in their homes where they spend more time removing particles that irritate their delicate airways.
2. Allergic rhinitis: allergies due to pollen, dust or pets
Allergy sufferers may experience symptoms like runny nose, sneezing, itchy eyes, and shortness of breath when exposed to allergens like dust, pollen, and pet hair. By reducing the concentration of these allergens, air purifiers allow people with allergies to breathe more comfortably.
3. Safeguard the immunity of young and old
The weakest immune systems are those of young children and the elderly, who are not prepared for the polluted environment. It is crucial that they live in a clean atmosphere, and air purifiers help to achieve this by removing pollutants from the air such as smoke, chemicals and dust to make it easier for them to breathe.
4. To keep secondhand smoke away from indoor smoking.
Smoking indoors exposes people to the risk of secondhand smoke and its unpleasant odors. Using an air purifier simplifies the removal of both smoke and odor.
5. Additional contamination and unpleasant odor problems
Living in a city is challenging due to vehicle emissions, smoke, bad odors, and harmful allergens that can quickly enter your home and cause health problems. Using an air purifier to actively clean the air is one of the best ways to get rid of these harmful pollutants.
How does an Air Purifier work?
There are two different types of air purification technologies used by air purifiers: active and passive. Passive air purifiers use air filters to remove contaminants, while active air purifiers discharge negatively charged ions in the air that cause contaminants to stick to surfaces. Passive purifiers are more efficient as all dust and particles are permanently removed from the air and collected in filters. To clean the air, several techniques of varying effectiveness can be used, some of which are listed below.
What are the types of filters in air purifiers?
There are several different types of air filters used in air purifiers in various combinations. Most of them employ the 7-stage filtering method. Learn more about the operations of these filters below.
- Prefilter/Fine filter prevents the HEPA filter from clogging by trapping large airborne particles such as dust, non-woven fibers, and pet hair. They should be vacuumed or washed regularly.
- Antibacterial/germicidal filters Helps kill dangerous bacteria, germs and microorganisms.
- High Efficiency Particulate Air (HEPA) Filter remove at least 99.5% of airborne smoke, mold and dust particles, some of which can be as small as 0.3 microns in diameter and invisible to the naked eye. This technology is also found in many high-quality vacuum cleaners, making it one of the best options for allergy sufferers. Find HEPA filter air purifiers here.
- Activated Carbon/Charcoal/Ozone Filter with its porous carbon it traps impurities such as unpleasant odours, smoke and chemicals, but it is ineffective at removing chemicals or allergens. Charcoal is formed from charcoal and has the ability to absorb odors and gases through its microscopic pores. Find charcoal air purifiers here.
- Photocatalytic Oxidation (PCO)/ Cold Catalyst Filter oxidizes and breaks down pollutants, such as formaldehyde and other dangerous gases such as benzene, ammonia and TVOC, using a titanium dioxide-coated metal plate and UV radiation.
- ultraviolet filter neutralizes potentially dangerous germs and microorganisms with its ultraviolet light, ensuring sterile air that is safer to breathe. These filters are often not ideal for allergies, chemical fumes, smoke, or odors.
- Ionizers / Ionic or Ionization Filter sends electrically charged ions into your home to bond with any potentially dangerous contaminants using a mild electric field. Since they can no longer float, they fall to the ground and are sucked in or removed from the air by filter plates. The most effective way to filter tiny particles in the air, such as smoke and dust, is with this type of filter. Find Ioniser air purifiers here.
How to choose the right Air Purifier for my home?
Before choosing an air purifier for your home, you should consider the following.
1. room size
The suggested room size for air purifiers makes it easy to determine the size of space that will allow them to operate at maximum efficiency. A larger air purifier will use more electricity, while a smaller one may not be as effective. You must measure the size of the space to be able to choose which one is appropriate for your home.
two. Purpose of buying the Air Purifier
If you are buying an air purifier for a specific reason, you can select the filter needed and determine whether or not the air purifier you have chosen has it.
3. CADR and ACH ratings
- Clean Air Delivery Rate (CADR)
The Association of Home Appliance Manufacturers (AHAM) developed this rating system to demonstrate the efficiency of an air purifier. The higher the CADR value, the more effective the air purifier is at cleaning the air in the room.
- Air changes per hour (ACH)
This number reveals how often the purifier changes all the air in the space in one hour. Simply put, a room with a 4x ACH rating will change the air in that space four times an hour.
Four. Air quality indicator
When the air quality in the room changes, an LED indicator on the air purifiers changes color. You can change the fan speed according to the air quality. Recent models from manufacturers like Dyson and Xiaomi have built-in smartphone apps so you can remotely control air purifier operations and check the air quality in your home.
What are the characteristics of the air purifier to consider before buying?
- Noise level – For deep sleep, look for models with low noise levels.
- Filter change indicators – Since filters may need to be replaced over time, look for a filter life indicator through lights or a display.
- Speed and fan settings – You can use your appliance more effectively and according to your needs due to various fan and speed settings.
- sensors – When your air purifier is running, air quality sensors help monitor the air.
- Timers – The timer functions are a useful option that allows you to set when you want the device to run.
- Remote or app controls – Remote and app controls are a useful feature that makes it easy to modify settings from a distance.
- Weight – Make sure you can easily lift and move your chosen model. Opt for devices that are compact or that include handles or wheels. Find portable air purifiers here.
How to maintain air purifiers?
To improve product performance, the air purifier filter should be changed every 8 to 12 months. These filters can be easily found online and installed using a simplified method. You can refer to the product manual or contact customer service.
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