Heavy pollution in Ho Chi Minh City and Hanoi: How to buy air purifier to prevent fine dust?

In recent days, the AirVisual monitoring system continuously announced the highest level of Hanoi air pollution, which made many people worried.

Faced with such anaerobic air pollution, many people rushed to buy air purifiers. However, not all machines have the effect of filtering out fine dust that is harmful to health.

So how to choose a good air purifier, to protect the health of family members?

This article will help you answer that question.

First you need to understand the use of air purifiers. Basically, air purifiers are electronic devices that draw air in a room, pull through a system of standard filters and then blow out fresh air. Typically, an air purifier consists of 3 screens: coarse, intermediate and fine.

The main function of the air purifier is to remove dirt, air pollutants, even bacteria, pollen . The basic structure consists of 3 main parts: the chassis, the fan. suction and membrane filters. Conventional frames made of durable and hard ABS plastic, exhaust fans affect the capacity of the machine, the noise level. The filtration efficiency depends mainly on the membrane.

To choose an air purifier suitable for your family, you should consider the following factors:

Consider the purpose of use

First, confirm what your main purpose is. You need to filter common dust, PM 2.5 dust or formaldehyde smell (often found on newly purchased items), toluene (a volatile liquid commonly used in industry), unpleasant odors and cigarette smoke, or want to fight against bacteria, pollen, fungus, animal hair .

From there, you will find the type of machine that suits your needs. Different machines use different types of filters. The more a filter membrane holds in matter the smaller the volume, the more expensive it is.

Several types of filters available on the market:

- The current popular type of filter is the coarse filter, which handles large-scale dirt and can also retain cloth, cotton or hair;

- Membrane filter by activated carbon, helps eliminate toxins, odors, cigarette smoke;

- Pollen filter, reducing allergens such as pet hair, pollen .;

- Titanium filter;

- Water filter, has a humidifying effect;

- Hepa filter, the most advanced, has the effect of absorbing a large number of very small particles capable of causing asthma and respiratory allergies to humans.

With the current air pollution situation, you should consider choosing a machine with a filter that can keep fine dust. Most models on the market today use HEPA filters, made up of thin filaments of 0.5-2 micrometers in diameter, so they can retain dust particles, pollen, smoke molecules . up to 0.3 micrometers in size.

Choose the right machine capacity for the room area

Among all types of filters are mentioned effective use area. Users should calculate the area of ​​the area they intend to use the filter to equip appropriately.

In the home, the bedroom is probably the most needed filter room. In addition, some families also use filters in the living room. Some places offer both available space when closing or opening a room, so you should take a closer look at this information.

Features included

In addition to air purification, some types of machines now have more modern and handy features. You can consider the features that come with the device such as a remote control, support for catching mosquitoes, humidifying or dehumidifying, UV disinfection, timer via application .

However, the more features, the more expensive the machine. Consider and choose the product that suits your needs and your budget.