Features:
- Long life and washable filter
  The filter is easy to be dismantled and installed.You can use dust collector or water to clear away the dust.
  
- Highly flexible installation
  The unit is designed for outdoor installation and less indoor space taking,allowing easy installation and maintenance.The unit can be installed on the ground or on the roof of the building,which means the installation is totally flexible depending on the project requirement.
- Cold air prevention design
  When heating in winter,cold air prevention function is enabled so that air won't be blown out until it's warm.