Air purifier in 2013: 151 brandsAir purifier in 2014: 556 brands

September 15, 2015: new national standard for air purifier “GB / T 18801-2015” was announced

March 1, 2016: new national standard for air purifier “GB / T 18801-2015” formally began to implement

Clean Air Delivery Rate (CADR)

The new national standard definitions:

CADR refers to the amount of clean air, the total output of clean air after the purification filter (m³ / h), containingparticulatematterCADRandformaldehydeCADR.

The new national standard analysis:

1-hour production of the volume of clean air, this is the main measure of the purification efficiency of the air purifier.

Particular matter CADR 500m³ / h: using the air purifier for one hour for purifying particular matter, it can purify 500m³ofparticularmatter

Formaldehyde CADR of 200m³ / h: using the air purifier for one hour for purifying formaldehyde, it can purify 500m³offormaldehyde

Cumulate Clean Mass (CCM)

 The new national standard definitions:

When CADR value declines to 50%, the cumulative total purified pollutants (particulate matter or formaldehyde) are counted in mg.

Particulate matter CCM is denoted by P and is divided into four levels, P1, P2, P3, and P4, from low to high respectively. These correspond to the total weight of the purified particles: 3000-5000mg, 5000-8000mg, 8000-12000mg, 12000mg and more, and the most advanced being P4.

Formaldehyde CCM is denoted by F and is divided into four levels, F1, F2, F3, and F4, from low to high respectively.  These correspond to the total weight of formaldehyde purification: 300-600mg, 600-1000mg, 1000-1500mg, 1500mg and more, and the most advanced being F4.

The new national standard analysis:

CCM represents the purification capacity of pollutants. Air purifier with only high efficiency in CADR level does not mean it is efficient, both CADR and CCM level need to be high in order to prove that the air purifier has fast and efficient purification system with a strong purification outcome and a longer life filter.

Noise

The new national standard definitions:

The sound level of the air purifier produces when its CADR reaches the maximum value.

The new national standard:

When CADR≤150m³ / h, thenoisethatthemachineproducesshouldbe≤55

When 50<CADR≤300m³/h, thenoisethatthemachineproducesshouldbe≤61

When CADR 300m³ / h, thenoisethatthemachineproducesshouldbe≤66

When CADR>450m³ / h, thenoisethatthemachineproducesshouldbe≤70

The new national standard analysis:

When the CADR value gets higher, the fan inside the machine must increase its speed, hence, the noise will follow this increase too. Therefore, a truly effective air purifier requires strong capacity, with efficiency in the purification process, and the noise level needs to be as low as possible.

Purifying energy efficiency

The new national standard definitions:

Purification energy-efficiency definitions: CADR air volume and the power rate ratio divides into two parts: particle removal efficiency and energy formaldehyde removal efficiency.

Particle removal energy efficiency:

When the value reaches 2, it is at qualified level

When the value reaches 5, it is at efficient level

For formaldehyde purification energy efficiency:

When the ratio reached 0.5, it is at qualified level

When the ratio reached 1, it is at efficient level

The new national standard analysis:

An air purifier needs to be effective and energy saving at the same time.

A high-quality air purifier with high CADR value should also have high CCM value, high purification energy efficiency, and low noise level. (Three-High-One-Low)

See also:

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