American brand Aquasana is a leading expert in water filtration, with 26 global patents, a full range of water treatment products, and certifications worldwide including 42/53/401/P473, the highest certification by the National Sanitation Foundation. Additionally, the Aquasana water filtration product line has won many awards including the Frost & Sullivan Best Practices Award for Product Line Strategy Leadership.

In addition to choosing a water filter that is designed to filter lead, choose one that has a NSF 53 certificate, such as those by Aquasana, to effectively filter lead from your drinking water. Products that are only certified for NSF 42 certificate cannot be guaranteed to remove lead effectively, so further care is needed.

No. To be NSF 53 certified, a water filter must undergo stringent performance tests. Where products may claim to be NSF 53 certified but do not hold a valid certificate issued by the NSF, credibility is questionable and caution should be used.

To check if the certificate of a water filter product is authentic, you may visit the official NSF website (www.nsf.org) and enter the product's brand name to know immediately if the product has any valid NSF certifications or are NSF-accredited, bearing in mind that NSF 53 is the certification to look out for in water filtration products designed to filter out lead.

Not exactly - to obtain their NSF 53 certification, some water filers undergo tests specifically designed for lead while others undergo tests specifically for volatile organic compounds (VOC). Aquasana water filters undergo a total of 57 different test items under NSF53 to ensure that unlike products by other brands, they can also effectively remove turbidity, active cysts and methyl tert-butyl, etc.

The water is colored greyish by the activated carbon. While not harmful to the health, we recommend running the water until it is no longer grey before usage.

因為水在經過新的高密度活性碳濾芯過濾後，會略為改變其酸鹼值，因而讓水摸起來有略為滑滑的感覺，這是高密度活性碳濾芯的特性，而飲用此水並不會有任何健康上的問題。可倒置濾水器，放水幾分鐘，再轉正，放水幾分鐘，濾芯充分浸透後水質會恢復正常。

While Aquasana filters contaminants, it also retains naturally occurring beneficial minerals. After boiling, these minerals may present themselves in the form of white particles. If you wish to keep these beneficial minerals while preventing scale deposits, the AQ-5300A Under Counter Water Filter, which is compatible with a pre-filter is recommended.

TDS升高或保持不變是由於過濾後的水中攜帶有一些碳末，這些碳末對人體無害，事實上，在醫療上碳用來治療中毒患者。大多以活性碳為過濾原理的淨水器都有類似情形。 Aquasana 淨水器濾芯經過NSF按照NSF 42標準測試，證實對人體是安全的，因此不必擔心過濾後水質，可以放心飲用。

Aquasana filters work best between 4.4℃ – 32.2℃, and while hot water will not affect the service life of the filter, it will affect the effectiveness of the filter. Therefore, filtering the water before heating it is recommended.

Yes. However, as Aquasana was designed for usage with running water, sediment in groundwater may clog the filter. When setting up for usage with groundwater, installing a PP Pre-filter is recommended to increase the service life of the filter.

No. This is actually a normal occurrence – when switching off the tap or switching to running water, the air pressure inside the the filter cartridge will cause a mild leak until the air pressure returns to a normal atmospheric level; the leakage helps prevent a water hammer effect and does not mean your filter is faulty. Please use with ease of mind.

No, even if the filter has reached its capacity, the contaminants will not be released into the already filtered water.

The water is best used on the same day it was filtered, consumption within 48 hours is ideal.

Filter cartridges that have passed the recommended service duration cannot be guaranteed to perform effectively to the standards required by NSF. In order to keep your filter in optimal working order, it is recommended to change the filter cartridge once every 6 months.

You can take out the filter cartridge and store it in a clean and dry bag in your freezer. When you would like to use it again, you can install it using the same method as installing a new cartridge, and run the water through the filter for 10 minutes (For Power Filtration System, flush the system for one full cycle). Filter cartridges that have not been opened yet should be stored in a cool and dry environment, away from direct sunlight and moisture.

Filters should operate at the specified temperature range as exceeding the temperature range could adversely affect the filter cartridge's performance. As the service life of the filter is limited, please replace the filter regularly to ensure continued optimal performance.