Please check out the frequently asked questions
about FREKA below.
FREKA Product General>
▶ Who is FREKA for?
FREKA was made for city people who pursue a healthy life. High levels of fine dust and allergens such as pollen give negative effects to body and mind. The most important factor in selecting masks to prevent these sources of pollution is “leakage rate.”.
However, since our faces are all different, lowering the leakage rate adjusted to each of them is very difficult without deep understanding of faces
FREKA is designed to fit each face shape based on ergonomics, recording very low leakage rates while providing comfort.
▶ Where is FREKA made?
FREKA is produced by applying British industrial engineering design and detailed tailoring skills.
FREKA FLOW2 is made by a master of long-standing British handcraft skills, and FREKA FACEWEAR and FREKA KIM Mask based on the morphological technology tailored to Asian faces and English Heritage design are made in Indonesia and South Korea.
FREKA Filters are made in South Korea with its world widely-recognized technology and resources.
▶ What is the recommended level of pollution
for wearing FREKA?
In the range of Air Quality Index (AQI) from 0 to 500, AQU values at or over 50 enters the level of moderate health concern.
Wearing masks is recommended when daily average fine dust concentration level is over 80㎍/m³ and daily average ultra-fine particle concentration level is over 35㎍/m³.
Even when the fine dust concentration level is normal (below 80㎍/m³), it is recommended to keep wearing masks while staying outside for long hours.
FREKA Product Performance>
▶ What is the standard for the grade of FREKA
FFP is European mask standards, and it is categorized into dust mask, special grade (FFP3), 1st grade (FFP2), and 2nd grade (FFP1).
|FFP||Leakage Rate||Filter Efficiency|
The higher the grade, the higher the leakage rate, but high respiratory resistance can cause discomfort.
Therefore, higher grades are not necessarily good, and FFP1 (2nd grade dust mask) is best suited since its respiratory resistance is very low.
FREKA created products that provide improved breathing with a low leakage rate, which passed FF2 (the level of N95) certification required as industrial masks through
BSI test in the UK.
▶ Why does FREKA emphasize the efficiency rate of over 95%, not 99%?
The normal standard for industrial masks used worldwide is “N95,” which means that the mask has filteration efficiency of over 95%.
N99 grade “99%” is the level where people can’t breathe normally, so frequent use of masks at this level could rather threaten health.
The reason why other brands say that breathing is comfortable even though they use 99% filters is because the air flows through the gap between the skin and the mask while wearing it.
It means that particles leak into the areas which the mask does not adhere to such as nose and chin.
Therefore, filtration efficiency itself is important to block particles thoroughly, but “face fitting,” which is to design
and make masks fitting faces perfectly to prevent air leakage is more significant.
FREKA is facewear that realizes the optimal face fitting based on face scan data with the efficiency of over 95% that helps maintaining comfortable breathing.
▶ What is the result of functional test of FREKA
FREKA has the advantages of both cartridge-typed replaceable filter (a type of mask similar to gas mask)
and disposable mask, and passed the two tests (EN1827:1999+A1:2009, BS EN149:2001 +A1:2009)
in the UK.
This is the first case of replaceable masks ever in Europe.
In addition, FREKA, which was awarded in 2016 iF Design Award, is creating design innovation in the field of masks as introducing a completely new structure of replaceable filters which has never been seen before.
FREKA Product Features>
▶ What is the replacement cycle of FREKA filter?
The time to replace filters is determined by contamination level of surrounding environments, purpose of use, storage method, and etc.
According to the standards for fine dust (In European standards, PM2.5 is 12 μg/m3 ~ 15 μg/m3), the filter can
be used for eight hours for two weeks, but when ultra-fine particle warning (PM2.5 is over 120 μg/m3) is issued, it is recommended that the filter be replaced after being used for six to eight hours a day.
If you have difficulty breathing, or the filter smells or gets contaminated, immediate replacement is recommended.
▶ When is FREKA filter’s expiration date?
Expiration date of FREKA filter is calculated considering the time when the non-woven fabric is degraded, but it can be used for up to three years if it has been sealed at room temperature.
However, its performance depends on the storage conditions, so it is recommended that the filter be always stored in a cool and shady place with no humidity.
▶ Can FREKA products be used with sterilizing
agent or antimicrobial?
If sanitizers or antimicrobial agents are applied directly to FREKA products, their ingredients can be inhaled and absorbed into the body.
It is never recommended since this way can cause serious health problems and disorders caused by respiratory diseases.
▶ Can FREKA filter be reused after being washed?
FREKA filter is electrostatic and captures external materials just like charing the filter with static electricity.
Since electrostatic filters have more loose structure than mechanical filters do, their respiratory resistance is low, so most of branded filters including FREKA’s are electrostatic. However, the most vulnerable part regarding this electrostatic method is clogging effect due to humidity.
“Clogging effect” is the problem where filters are clogged as they are exposed to dusts and humidity for long, which occurs when expired filters are continuously used. This can make breathing more difficult and largely reduce the efficiency of filters as pollutants are not filtered.
Therefore, the filters cannot be reused after being washed and have to be regularly replaced with less exposure to humidity.