We are still familiar with purifiers. There are many purifier brands on the market. Have you heard of millet purifiers? Many consumers will ask millet purifiers to use them? Purifier filters are very important in purifiers. Part of it, we are still very concerned about the purifier filter, we need to understand the purifier filter purchase guide.

Is the millet purifier easy to use?

The millet air purifier HEPA filter has a length of 7.7 meters, and the cylindrical filter and the 161-layer folded structure expand the filter area in a limited area. The innermost filter element of Xiaomi Air Purifier is coconut shell activated carbon, which is not a common granular honeycomb structure. This filter is mainly used to absorb indoor formaldehyde, benzene and other harmful gases.

The filter of Xiaomi Air Purifier consists of primary filter, Toray's high-density HEPA filter and coconut shell activated carbon filter. The front filter is responsible for filtering large particles such as dust and hair. The filter element of Xiaomi Air Purifier integrates primary effect, HEPA and activated carbon three-layer filter to intercept large particles (hair, dust, etc.), inhalable particles (PM2.5, PM0.3, etc.), harmful gases (formaldehyde, Benzene, etc., can filter 99.99% PM2.5.

The millet air purifier has a length and width of only 31cm, which has a small advantage in the floor space. Its height is 80cm, and the body is tall and tall. Xiaomi Air Purifier also supports the shutdown real-time detection function, so that you can check the indoor air quality on the mobile phone before going home. If necessary, you can remotely start the work through the 3G/4G network. The power interface is at the bottom end and supports 100V-220V global wide voltage.

Like the Xiaomi smart socket and the small ant smart camera, Xiaomi Air Purifier also uses an app called “Smart Home”. The connection is relatively simple, the power of the purifier is turned on, and the APP can be found. The Wi-Fi password can be bound to the home. After binding, the mobile phone can remotely operate the purifier through the 3G/4G network.

Purifier filter selection guide

I. Comparison of applicable filtration standards for various air purifiers

The latest in China is GB/T 18801-2008. After consulting the technical standards, we learned that:

1. The air purifier does not require filtering of various pollutants. The standard text is:

Air purifier: An electrical device that has certain removal capabilities for solid pollutants, gaseous pollutants, etc. in indoor air.

Multi-Function Air Purifier: An air purifier that removes two or more air pollutants.

2, noise

The national standard stipulates the upper limit. The CADR<150 does not exceed 55dB, and the CADR<400 does not exceed 60dB. Therefore, the actual help is not large. The normal noise of the ordinary room during the day is about 30-50dB.

3, filtering effect

The national standard also stipulates solid pollutants and gaseous pollutants, but the new standard changes the measurement method. Only CADR is used as the standard. “The measured value of the clean air of the air purifier should be no less than 90% of the nominal value.” effect.

As "this standard is a revision of GB/T 1880l 2002 "Air Purifier", the standard stipulates that indoor air absorbing particles Pm 10 is less than 0.15mg/m3, formaldehyde is less than 0.1mg/m3, total volatility The organic matter is less than 0.6 mg/m 3 . Unfortunately, the caliber is different, there is still no way to directly compare with European and American standards.

HEPA and ULPA

HEPA is a standard defined by the US Department of Energy and requires at least 99.97% of atmospheric dust with a diameter of 0.3um to be removed. Therefore, HEPA only specifies the filtration effect of “solid pollutants” in the national standard. H13 and H14 are HEPA, U15-U17 is ULPA, and ULPA has better filtration effect than HEPA. In addition, special attention should be paid to the use of "HEPA-type", "HEPA-like", "HEPA-style", "99% HEPA", etc. These are not true HEPA, they are gimmicks. Really HEPA must be True HEPA.

The above is the content of Xiaobian's introduction to the millet purifier and the purifier filter purchase guide. Xiaobian thinks that the millet purifier is still good, the user's evaluation is good, the word of mouth is also excellent, everyone You can refer to it when you purchase it. I hope that the content that Xiaobian will introduce for you today can help everyone.