Xpelair PX commercial panel fans are ideal for ceiling and panel applications in kitchens, restaurants, pubs, offices, schools and shops. They can be installed at any angle in ceilings, voids and wall panels of any thickness due to the concealed fixing points provided. An integral spigot allows the attachment of flexible ducting. PX fans feature an enclosed external rotor motor to provide constant volume outputs even in gusty external conditions. An electro-thermal shutter protects against draught and heat loss by closing the fan shutters when not in use.