Air purification technology comparision

Purification technology

Advantages

Drawback

HEPA filter

1) Traditional purification method, efficient to remove contamination down to 0.03um.

2)Safe and no any by-product or electronic danger.

1)No efficiency to contamination smaller than 0.03um, for example: voc etc.

2)High replacement cost.

3)Only purify air which put through machine.

Negative ion

1)Negative ions disperse throughout the room and cause particles to drop down to ground.

2)Fresh air and improve spiritual status.

Trap particles onto ground or tables, thus, ground or tables should be cleaned frequently.

PCO technology

Strong purification technology to virus, bacteria, germs etc. 

1)High replacement cost for UV lamp.

2)The Photocatalyst (TiO₂) is easily coated by dust over some time and efficiency will decrease.

Electrostatic(ESP)

Most strongest and efficient purification to various contamination: particulates, dust, bacteria, virus, germs, VOC, smoke etc.

1)Complicated manufacturer technology.

2)Create ozone as by-product easily.