Energy recovery ventilators; total energy, air-to-air heat exchangers not being parts of machines; fixed plate energy recovery cores used for the transfer of both sensible and latent energy between supply and exhaust air streams to heat exchangers and Dedicated Outdoor Air Systems (DOAS); dedicated outside air systems (DOAS) units; packaged DOAS units with fixed plate energy recovery cores; packaged direct expansion (DX) units for outside air treatment with hot gas re-heat; stand-alone air pu...

DYE PREPARATION WHICH IS APPLIED TO GRASS FOR BROWN PATCH CONTROL

DYE PREPARATION WHICH IS APPLIED TO GRASS FOR BROWN PATCH CONTROL