Pre-filter(blue) + Hepa13 + Activated carbon

the anwser is in the  3mins video down below:

 

Do Air Purifiers Actually Work? Are Air Purifiers Worth it? (Do You Need and Air Purifier at All?) – YouTube

Details
Place of Origin: Guangdong, China
Brand Name: Vansu
Model Number: CP053
Capacity (CFM): 5.88 CFM (10m³/h)
Dimensions (L x W x H (Inches): 2.76×2.76×7.09 in
Power (W): 3W
Voltage (V): DC 5V
After-sales Service Provided: Free spare parts
Warranty: 1 Year
Type: Air Ionizer
Installation: MINI
Certification: EMC, ce, RoHS
Application: Hotel, Car, Outdoor, Garage, Household
Power Source: usb, Vehicle Power Supply
PM CADR: 10m³/h
Featured Function: Aromatherapy
Air Quality Display: No
Timer: No
Product name: car air purifier
Net Weight: 0.3kg
Size: 70x70x180 mm
Material: ABS + Aluminum alloy+ Metal mesh
Noise Level: <48dB
UV light: 275+395nm LED
Negative ions: 47.6 million pcs/m3
Filter: HEPA 13 + Activated carbon
Feature: UVC+Anion+HEPA+Aromatherapy
Keyword: Airpurifier