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How important is the right time to replace filter ?

When you are going to purchase an air purifier, not only it must have great purification efficiency but also the filter must be replaced at right moment. The filter replacement is strongly related to our health and the cost, which you may read this previous article about it. The most of air purifiers in market are using time-countdown to remind users when the filter must be replaced. Is it really accurate in practical ?
 
Let us look at these 4 different cases, provided by 4 BRISE users in the Netherlands.
Case A: 
  • Type of location: normal family house
  • Life style:
    parents with 2 kids
  • Place of BRISE: living room of 30 m2 with open kitchen
  • Vacuum cleaning: weekly
  • Life time of pre-filter: 3 months
Right: new pre-filter Left: after 3 months
Case B: 
  • Type of location: normal family house
  • Life style: parents with 2 kids and 2 small size of dogs
  • Place of BRISE: living room of 30 m2 with open kitchen
  • Vacuum cleaning: every 3 days
  • Life time of pre-filter: 1 month
Case C:
  • Type of location: normal family house
  • Life style: young couple with 1 long-hair cat
  • Place of BRISE: living room of 25 m2 with open kitchen
  • Vacuum cleaning: daily
  • Life time of pre-filter: 1.5 months
Case D
  • Type of location: Dental clinics
  • Life style:
    dentist and several patients
  • Place of BRISE:
    treatment room of 12 m2
  • Vacuum cleaning: daily
  • Life time of pre-filter: 2 months
You can see the significant difference of filter life-time from case A and B. The user of case A received the notification of filter replacement after 3 months but the user of case B (with 2 dogs in house ) received the warning of filter replacement within 1 month !  Similar with case C, both even told us that they vacuum the living room quite often because of pets in house. By case 4, the dentists were also surprised with this result after 2 months of placing BRISE at their treatment room. This could be caused by dozen of patients visit frequently every day.
 
These 4 users have got notification of filter replacement via BRISE App at different time since the first installation. Obviously, the life time of filter can be huge different because of different life style and location. Therefore, the moment when you replace the filter is actually very important. The time-countdown method, used by most of other purifiers in market, is completely not capable to know the difference. Too soon will waste your money and filter; Too late will harm our health. With the unique HEAPSmart technology of BRISE, you will no long worry about that. You do not need to count the time and write down the date you need to replace filter any more. You can keep the way of life you used to and BRISE App will notify you when it needs care.
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