As soon as winter arrives, the sky of North India gets lost in fog. AQI crosses 300, 400 and sometimes 500. It went up to 1000 on the second day of Diwali. In the language of doctors, this is not ‘severe’ but ’emergency zone’. When even daily breathing is like a struggle for children, elderly and people with asthma and allergies.
This is the time when people search Google quickly. ,Best air purifier’,Who,Like model buy,What filter In Money put in And Why,
But the truth is that in the Indian market air purifier Half the battle is lost because of wrong information. Companies sell shiny claims. ‘Anti-viral layer’, ‘UV kill tech’, ‘Oxygen fresh like feeling’. Whereas the real battle comes down to just three technologies: HEPA filters, carbon filters, and true CADR (C-A-D-R).
Let us know why air purifier is important and how to choose the best purifier.
Why is air pollution the real enemy?
The most dangerous particles are PM 2.5, so fine that they can penetrate the lungs and reach the bloodstream directly. In winters, this can cause problems ranging from sore throat, cough, shortness of breath to even cancer. This debate has been going on for a long time as to how effective air purifiers are, but doctors recommend keeping an air purifier at least in the bedroom. But before this it is important to know which air purifier will be better for you and how to choose an air purifier?
HEPA FILTER
The first and most important filter in an air purifier is HEPA. Only H13 or H14 Hepa filters are considered effective for India. It also blocks very fine particles like dust, smoke, smog and PM 2.5.
CARBON FILTER
If your problem is the smell of smoke, kitchen smoke, incense sticks, cigarettes or gas, then a carbon filter is necessary. It absorbs VOCs and smoke and eliminates odors from the room. For places like Delhi, only HEPA filter is not enough, it is also necessary to have a carbon filter along with it.
CADR: The biggest factor that people ignore
CADR means Clean Air Delivery Rate. In a way, it is like the mileage of a car. Just like while buying an air purifier you ask how much mileage it gives, similarly while buying an air purifier you must ask the shopkeeper what is its CADR i.e. how much air can this machine clean in an hour?
This number will decide whether your room will be cleaned in 30 minutes or the air will not be cleaned even in 3 hours. This is the reason that if CADR decreases, there will be no significant benefit in running the purifier.
How to choose the right CADR for a room?
If your room is 120-150 square feet then it should be 200-250 m³/h, if 180-250 then it should be 300-400 m³/h and if it is 300-400 square feet then it should be 450-600 m³/h CADR.
Auto Mode, PM Sensor and Noise Level
A good air purifier has many types of sensors which detect pollutants in the air. There should also be an auto mode which can set the speed automatically. There should also be a night mode feature that can run throughout the night without making noise or disturbing your sleep and clean the air. In such a situation, electricity can also be saved.
Biggest Hidden Expense: Filter Replacement
After purchasing the machine, the real expense comes on the filter. Before purchasing, always ask the company how much will the filter change in a month and what will be the price. For example, the air filters of Dyson air purifier last for a year. Similarly, different companies tell how long the filter will last. Many times expensive filters are installed in air purifiers.
Avoid using ion based air purifiers
Only carbon filters and ion based air purifiers are also available in the market. But this will not be a profitable deal for you. They do not clean the air completely, ion based purifiers will not be of much benefit.
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