For Mold sterilization for your residence, office and public spaces,
We Alone use “MIST” (Mold Improvement Special Technology ) method developed by Sera inc. ( http://www.sera.jp/) who has been working for Mold sterilization throughout the world over 20 years.
We are really proud of MIST method and its performances, achievements and trust from historical temples, shrines, and especially important cultural properties.
So, Today, we introduce our MIST mold sterilization process and cost for you!
MIST mold sterilization process
Our full process are as follows:
On-site Pre tests
Step.1 Visual check
To check the mold contamination level and contaminated area, and also measured indoor humidity and temperature.
Step.2 Moisture Measurement
To check the leaks and/or to access the potential risk of mold growth by using some tｙpes of non-disruptive moisture meters.
Step.3 Mold tests
For obtaining the risk of health effects and allergy, and also estimate how much space and which rooms you should sterilize, We select 2 types of mold tests: Air sampling and Surface sampling.
Air samplings are selected to estimate contamination level of mold in the area.
Air samplingtests need almost for 30 minutes or more to settle down indoor air before sampling and to set the sampling plates and capture the mold spores.
After closing the film of sampling sheets, we bring back them to our lab for culturing under 25-27 ℃ for 120 hours.
After cultivation, visible colonies are counted and the results are checked using the table .
| Exposure level | Number of Mold spores | Class | Observation | Judgement |
| level 1 | 0 | － | Clean | A |
| level 2 | < 5 | ± | Moderate contamination | B |
| level 3 | < 14 | ＋ | High Contamination | C |
| level 4 | ≧ 14 | ＋＋ | Serious contamination | F |
Referenced by MHLW notice.
Surface samplings are selected to assess presence and identification of mold groups.
After stamping or swabbing, we bring back them to our lab for culturing under 25-27 ℃ for 120 hours, and then Visible mold colonies observations and Direct Microscopic examination are done in our lab.
Step.4: Mold test report and proposal
We make the report for discussing with you to decide the sterilization area and treatment. (If you need a full report to hand in somebody or official record, please ask us before mold tests.)
Step.5 Making Quotation
After discussion, we give the final quotation for mold sterilization and set the date to do.
Or, if you have already found some visible mold and/or have some limited budget or deadline of remediation , we would skip mold test and make a quotation as soon as possible.
Sterilization process
We normally visit and work on a team.
Step.1 Cleaning all surface for effective penetration of MIST special solution into the surfaces and walls.
Step.2 Killing Mold
The most important thing to prevent regrowth is Killing mold hyphal
We do it by brushing and wiping using MIST-1 agent (sodium hypochlorite, tenside..etc)
Penetration and Drying time should be needed after working to ensure the effects.
Step.3 Sterilization
Killing mold spores floating in the space and attached on the surfaces using MIST-SP agent(ethanol, etc.) to eliminate the risk of next mold growth.
Penetration and Drying time should be needed after working to ensure the effects.
Step.4 Antimicrobial coating
Spraying Ag+ solution for antimicrobial coating to prevent attachment of mold spores etc.. and to eliminate odor, too.
Step.5 After checks, Report and Certificate
Some air sampling and surface sampling to check the effect of MIST works.
We can make the mold sterilization work report and certification at your request.
If you need periodical checks or periodical sterilization for your office, school and residence, we are happy to do it with discount price.
Mold tests and MIST mold sterilization cost
We introduce the basic cost of mold tests and MIST mold sterilzation and some cases for your information.
Mold tests
- Base Inspection fee : 15,000 Yen * including sampling, cultivation , making report
- Air Sampling : 3,000 Yen/ sheet
- Surface sampling : 13,000 Yen/ sample *including identification of mold group
- Water content measurement : Depend on the measurement area and the necessary of report (document)
- Transportation fee : actual cost for over 100 Km for round trip from our Toda , Saitama HQ
Plus tax 8%
Case 1 : Mold test for one room (6 tatami mats = 11 m2)
We recommended 5 air sampling (4 corners and the center of the room) , one or two surface sampling – one should be taken from the surface of susupected area at least.
3,000 Yen × 5 = 15,000 Yen
13,000 Yen × 1＝13,000 Yen（ when you try one surface sampling)
15,000 Yen for inspection fee
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Total : 43,000 Yen —-> 46,440 Yen (tax included)
Case 2. Mold test for the Office (35m2) with visible mold on the wall
We recommended 8 air sampling, two surface sampling – one shold be taken from the surface with visible mold and another will be taken from the other surface without any visible mold to estimate the damage from spreading by mold spores and water content measurment for the report to the landlord to eliminate mold problems with the landlord.
3,000 Yen × 8＝24,000Yen
13,000 Yen ×2 ＝ 26,000 Yen
30,000 Yen for water content mearsurement
15,000 Yen for inspection fee
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Total : 95,000 Yen —-> 102,600 Yen (with Tax)
MIST Mold sterlization fee
Normally, the cost is calculated based on the area and material for sterilization .
– Killing Mold : 1,200 Yen ～ /m2
– Sterilization : Depend on the room condition , number of furnitures, clothes, equipments, facilities…
– Antimicrobial coating : Depend on the room condition
– Miscellaneous
– Trasportaion fee : actual cost for over 100 Km for round trip from our Toda , Saitama HQ
Case 1 : Killing Mold including Ripping wallpaper off for one room 10.9 m2
please check here “Mold remediation case report – – Requiring removing wallpapers off”
Case 2. Killing Mold, Mold sterilization and antimicrobial coating for one Japanese room ( 6 tatami mats = 11 m2)
145,000 Yen —> 156,600 Yen (including tax)
If you need more information or question, please contact us anytime!
info@allone-kabitori.jp
