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Introduction
We understand that insect pests have serious impacts or disruptions on customers' health and work, so we focus on fundamental governance issues. AllerfreeHK allows our pest control services to be recognized by home and business customers through the following three aspects.
1. Professional technicians
Our technicians have obtained the certificate of pest management, and have rich experience, master the professional knowledge and skills in the field of pest control.
2. Safe and effective materials and tools
We are well aware of the principle that "workers who want to do their best must first sharpen their tools". Therefore, we strictly select various professional pest control appliances and materials to ensure safe and reliable service.
3. Special warranty period
Each of our pest control services has a special follow-up period to ensure that the problem can be cured.
(Please contact us for details)

Tap water contains three main types of pollutants
Biological pollution
These include bacteria (such as E. coli), algae and other plankton, which may cause disease or affect water quality.
Chemical pollution
Soluble solids: such as chlorides, sulfates, etc.
Volatile chemical poisons: including gases, volatile amines, trifluoromethane, chlorinated supplements, various trihalomethanes, pesticides, polychlorinated biphenyls (PCBs), carbon tetrachloride, trichloroethylene, xylene, etc.
Miscellaneous pollution
(particles insoluble in water)
Water-insoluble particles, such as asbestos, arsenic, heavy metals (aluminum, cobalt, cadmium, mercury, lead, manganese, silver, etc.), rust, sand and mud, etc.
01.
Precoat® Multi-pleat Multi-flow
Precoat high-precision filtration technology uses a multi-pleated structure to increase the filtration area, enhance filtration efficiency, and more effectively remove suspended matter and particles in the water. The multi-flow technology allows the filtered water to be recycled to a certain extent, thereby reducing the generation of wastewater and improving the utilization rate of water resources.
Precoat high precision filtration technology can remove particles as small as 0.5 microns, isolating health-threatening contaminants such as spores.
Micro-Pure ® Carbon Formula
02.
Micro-Pure® carbon has excellent adsorption properties and can effectively remove odors, pollutants and organic compounds from water and air.
Porous structure: Usually has a rich pore structure, which increases the surface area, thereby improving adsorption and treatment efficiency. Micro-Pure's tiny particles can catch 80 basketball courts of chlorine, impurities and other harmful substances.
Selective Adsorption: Ability to selectively adsorb specific pollutants such as chlorine, solvents and certain heavy metals, which makes it very effective in water treatment and air purification.
03.
NSF/ANSI 42 and 53 world's first-class drinking water
NSF/ANSI 42 focuses on the aesthetics and quality of water, involving the removal or reduction of chlorine, odor, color, and some particulate matter in water. This standard mainly evaluates the filter's ability to remove odor and chlorine from water, ensuring improved sensory quality of drinking water.
NSF/ANSI 53 focuses on the health aspects of water, mainly evaluating the ability to remove or reduce specific harmful pollutants, including heavy metals (such as lead, mercury), microorganisms, pesticides and organic chemicals. Products certified by this standard are considered to be able to effectively reduce key hazardous substances, making drinking water safer.
By obtaining drinking water treatment products certified to NSF/ANSI 42 and 53, consumers can have confidence that these products will improve water quality and ensure that the water is safe and healthy. These standards are important benchmarks in the drinking water treatment industry and represent the highest level of water quality assurance in the world.
Water filter ordering process
Water Filter Ordering Process
Water filter installation method
Water Filter Installation

1
Turn off the water
Before you start replacing the filter, you first need to turn off the water supply. Make sure that no water flows out during the replacement process to avoid unnecessary trouble and waste. Please find and close the water supply valve (total) and make sure that the water flow stops completely before proceeding to the next step.
2
Water pressure in the drain pipe
Open the filter faucet, drain the excess water in the pipe, and make sure there is no water in the faucet to ensure a smooth process of replacing the filter element.

3
Removing the old filter
Turn the filter all the way to the left and pull it down. If the filter cannot be pulled down, it may be sucked by the pressure in the water pipe. You can open the water supply and then close it to use the water pressure to pull down the filter.

4
Install new filter
Tear off the protective film on the new filter element and then insert the black sticker on the raised tenon-to-tenon filter head upwards to the bottom. Turn it to the right firmly and then you can turn on the water switch.

5
Turn on the water
Turn on the water inlet switch and faucet to ensure that the water filter can operate normally. Continue to drain water for 3 to 5 minutes to allow the carbon powder to evenly adhere to the filter surface. This can prevent the water from having an unpleasant odor and causing the filter element to be blocked prematurely.
