Although healthy living cannot cure diseases, because you have to go to the hospital if you are sick, a healthy indoor environment can make you sick less and get sick later, because people will eventually get sick in their lives.
The most reliable way for us to decorate is, of course, pollution source control, using decoration materials with high environmental protection level, furniture and soft decoration with high environmental protection level; A healthy indoor environment is inseparable from indoor air quality control; High-quality indoor air is inseparable from a good air purifier; How to choose a variety of air purifiers?
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Commonly used purification technologies on the market include: HEPA filtration, activated carbon adsorption, electrostatic dust collection, ultraviolet sterilization and disinfection, negative ions and low-temperature plasma, photocatalysts, etc.; There are many applications of HEPA filtration, activated carbon adsorption, and electrostatic dust collection on the market; Usually a variety of technologies are combined;
How to choose a good air purifier?
Two "hard" metrics to measure air purifiers:
01CADR value
That is, the amount of clean air, in other words, reflects the size of the purifier's purification capacity;
Such as PM2.5, formaldehyde, TVOC, etc.;
Air purifiers with high CADR values have a larger amount of clean air and a faster purification speed;
Generally speaking, it is excellent to filter indoor air more than 5 times a day. Refers to gaseous particulate matter, such as formaldehyde, TVOC total volatile organic compounds.
The principle of air purifier is to use the internal activated carbon filter to adsorb gaseous objects such as formaldehyde. It can only play a role in daily purification of indoor air, and source pollution control is the most reliable; After all, objects such as formaldehyde are continuously volatile, can be up to more than 15 years, and its adsorption is limited.
And I also want to add: pay attention to the type of activated carbon in the filter is a composite filter or an independent activated carbon filter, and whether the activated carbon used is columnar particles or carbon cloth, which is related to the acid of the filter.
In order to increase the gaseous CADR value, many brands use carbon cloth, which is to put it bluntly, the activated carbon is crushed and then glued with HEPA, and the contact surface is improved to reduce the wind resistance, so that the value is very high.
But this is useless, firstly, the amount of activated carbon is very small, and it is quickly saturated, and secondly, the probability of acidity is large, especially in humid places.
02 CCM value
That is, the cumulative purification amount; In other words, it reflects the length of purification life;
I recommend paying more attention to the CCM value of the filter than the CADR value, which represents the life of the filter. Air purifier with high CCM value, longer purification life without changing the filter element;
Solid-state CCM values are divided into four levels: P1, P2, P3, P4 from low to high.
P1 - 3000 to 5000 mg;
P2 – 5000 to 8000 mg;
P3 – 8000 to 12000 mg;
P4 - 12000mg or more;
Gaseous CCM values are also four levels: F1, F2, F3, and F4 from low to high.
F1 – 300 to 600 mg;
F2 – 600 to 1000 mg;
F3 – 1000 to 1500 mg;
F4 - 1500mg or more;
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1. Select "Effective"
Select products certified by authoritative authorities according to contaminants;
2. Choose "enough"
Pay attention to the applicable area on the label of the air purifier; Choose suitable products according to the size of the room; For example, to remove PM2.5, choose a product that matches the area, and the purifier will have obvious results after running for 20-30 minutes;
3. Choose "smart and comfortable"
First, the operation is simple and convenient; Can display air quality in real time, remote control, etc.; If there is a filter replacement prompt, it is even better;
Second, the noise is low, even if it is used at night, it can sleep peacefully;
Let the air purifier work better;
1. Avoid items blocking the air inlet and outlet of the air purifier;
2. Replace the filter regularly and do a good job in maintenance to make the air purifier continue to play a purifying role; If it is not replaced in time, the pollutants intercepted by the filter gradually increase, which will lead to a decrease in the purification effect; If the particulate matter accumulates too much, it may also become a hotbed for microbial reproduction and breeding, produce peculiar odors, and cause secondary pollution to indoor air;
The air purifier prompts that filter 1 and filter 2 should be replaced
Pre-filtration (hair, dander, etc.)
(uncleaned)
HEPA High Efficiency Particulate Filter (Dirty)
Activated carbon odor filter (dirty)
HEPA High Efficiency Particulate Filter (Old vs. New)
Pre-filtration (hair, dander, etc.)
(Cleaned)
Filter 1, filter 2 after replacement, return to green light, can purify the indoor air normally.