Buying an air cleanser to counter the high polluting of the environment levels? This air purifier buying guide aims to help you take an informed decision.
Buying an air purifier is tricky. With no industry standards in position in India, ındividuals are susceptible to the brands. The values of air purifiers can start around ranging from Rs 8,000 and Rs 1 lakh. There are numerous things to consider before buying an air purifier. It is vital to go through the specifications of each and every model rather than blindly believe the sales executive. This buying guide aims to assist you to take an informed decision.
What to remember first
Before you head out to buy an air cleanser, note the annotated following:
Note the size of the space (preferably in square metres) in which you desire to install an air cleaner
Note that portable home air cleaners are designed to appeal to just one room
Avoid Ionizers, UV light-based models. These home air cleaners release ozone as a byproduct which may have undesireable effects.
The price of replacing air filter and electricity costs should always be taken into account. For best results, home air cleaners must be kept running always.
Certifications to bear in mind
There are two main standards- AHAM (American) and China certification- that are taken seriously on the market. Most home air cleaners that exist in India don’t have any of these certifications. Both the certifications ensure the absolute minimum quality and performance standard for an air purifier model.
Some popular AHAM Verifide brands are Blueair, Bosch, Electrolux, Honeywell, LG, Philips, Sharp, Whirlpool and others. Note that all models because of these brands might not be certified.
Some brands like Xiaomi follow Chinese GB/T 18801 air cleaner standard.
Form of Filter
The product quality and sort of filter determines the effectiveness of an air cleaner. Specific filters target different aspects of air. The most commonly available filter type is HEPA (High Efficiency Particulate Air). It can filter most (up to 99.9%) air borne particles of small sizes all the way to 0.3 microns. For general usage, HEPA filters get the job done.
Some brands provide ultrafine particle filter combined with HEPA filter to a target particles even finer than 0.3 microns (Divide a hair strand into 240 pieces in addition to width of just one such piece is equivalent to 0.3 microns). Observe that HEPA filters do not remove odour.
To a target odour, you will have to go for an activated carbon filter across the regular HEPA filter combination. There are several types of activated carbon filters. A few of them are light mesh-like which prevents cooking odours. Having said that, some filters offer activated carbon pellets that may remove gaseous and chemical odours.
Some brands even let you customise the filter as per your requirement.
Air cleaner filters usually do not kill air borne germs and bacteria as a whole. It is possible to be aware of filters with antibacterial coating. However, avoid UV light-based models.
Few air purifier models offer a washable pre-filter to capture dust along with other large particles. Go for a model with pre-filter as it increases the expected life for the filter inside.
The performance of a particular air cleaner model is rated by its coverage area, Clean Air Delivery Rate (CADR) and Air Changes Per Hour (ACH). While brands will boast concerning the CADR and coverage of a particular air cleanser model, they are going to choose to remain silent on the ACH. It is something you need to ask and find out before buying an air purifier.
What exactly is ACH?
Air Changes each hour (ACH) is basically how often an air purifier can clean the air of the claimed coverage area in an hour or so. This is important because pollutants constantly enter your living space in addition to air cleanser needs to constantly clean the atmosphere. Because of the pollution levels in Delhi, decide for an air purfier that offers 4 ACH. This implies the atmosphere purifier can perform washing the air of this entire claimed area four times in an hour or every 15 minutes the air inside is totally replaced.
The catch let me reveal brands have a tendency to hide the ACH rating while showcasing an increased coverage area and CADR. If an air purifier can cover more square feet however, if its ACH is just about 1 or 2, then it’ll be less efficient. Some brands like Blueair offer 5 ACH.
Other things to see:
Cost of replacement filters and their lifespan. Filters usually cost in the number of between Rs 1,500 and Rs 2,500 with a lifespan of around half a year. Also, don’t forget to check into the availability of filters.
Considering electricity costs, attempt to hunt for an air purifier with energy star ratings.
Noise levels must certanly be around 35 decibels once the fan is running at the top speed. Usually do not decide for models with above 55 decibels rating. It is commonly disturbing during sleep.