CRAC  clean air filter has long service life and intimate
 service

An air conditioning group has been using air filters produced by CRAC  Purification since 2014, before 2014,
 the primary air conditioning filter will be replaced once every 1-2 months, and the medium air conditioning 
filter will be replaced in 3-6 months. Since the use of Changrui products, the replacement time has been 
extended by more than 30%. The high efficiency air filter replacement time has been extended by about 20%,
 and we are satisfied with the service level of Changrui.

CRAC Purification 13 years focus on the production and service of air filters, the main products include air 
filter series of initial effect air filter, medium effect air filter, high efficiency air filter products (such as paper 
frame, medium effect products, aluminum frame plate can be cleaned, medium effect bag series, painting 
courtyard cotton series, dust collection equipment, Filter cylinder series for environmental protection 
equipment, activated carbon filter products, high efficiency with partition, high efficiency without partition,
 fan filter unit (FFU) products, etc.).