the device does not contain any asbestos material

Specialized tools are used for removing dirt and moisture from the ducts and finally vacuum treatment is given for removing any invisible dust. You should check and clean all the set of heating systems, including the components which supply air ducts like grills and heat exchangers. It is not enough if you simply clean one cooling system or heater while you opt for air cleaning. They may induce allergic reactions if you are exposed to contaminants for longer duration. Also find out whether the company offering service is qualified for it. Added with moisture this could give room for the growth of bacteria which is potentially dangerous to you. The cost for cleaning the air systems may vary on the size of the equipment and services offered. Ensure the device does not contain any asbestos material in it since you must use special procedure for removing them. 

Use vacuum cleaner for exhausting the air particles and dust outside your house. In the long run, it is likely to get accumulated with dust particles which may cause serious health problems. Proper brushes must be used for removing the dust home air cooler wholesale particles before applying vacuum. Handle the fiberglass duct surfaces using soft bristled brushes for avoiding any scratches. Once you have decided to clean, ensure that the service provider agrees to clean all the indoor air composite devices leaving none. For thorough air duct cleaning, you should first open out all the doors and ports of the devices for complete cleaning. Also this involves cleaning of air conditioning system, fans, and motors of the unit etc.Air duct cleaning refers to cleaning of heating and cooling devices in your house which have components of air systems in it. 

Ensure the service provider company cleans all the devices which functions by air thoroughly otherwise it may get contaminated again even if single system is not cleaned. Safeguard the carpets to some other room while cleaning the device of heater or cooler.. Some providers may use chemical compounds for destroying the micro bacteria from the air ducts of the devices. The device is likely to get contaminated with air particles like dust, and debris. The indoor air pollution can be removed by servicing the air duct equipments properly which in turn improves of quality of air circulation inside your house. Take enough care to protect the air duct and completely seal the access or holes which may invite dust particles to get accumulated.