Bunker Hill PPE Supplies
Type and GRADE OF MASKS
Serving Bunker Hill, our medical face masks come in 3 types, Fashion, Medical and Non Medical. For Covid19, we offer Medical & Non-Medical masks in 2 Styles Folding Type Masks and Surgical 3ply Masks
Medical and Non-Medical
Medical AND Non-medical
KN95 MASK & N95 FACE MASK Frequently asked questions
In April 2020, Kn95 respirator masks were made available world wide to help fight the COVID-19 pandemic. They are produced under regulations GB2626-2006, GB262-2019, and GB19083-2010.
Healthcare workers use the KN95 face masks since they meet FDA guidelines and international standards in the US. The KN95 face mask fits tightly around the face to create an airtight seal. What is unique about the KN95 is the fact that it uses an ear loop fastener, to distinguish it from other types of masks with head straps. Many favor the KN95 mask design as it is easy to put on. Its design also fits very well from the nose to the chin area stopping airborn particulates from bypassing the mask filter.
The KN95 is your first defense against air borne particles including viruses and bacteria stopping 95% of all particles greater than 0.3m in diameter. Therefore not only will the KN95 stop fine particles such as dust & pollen, it also will reduce the risk of viral infections.
Typically Kn95 masks have 5 layers of protection. Layers are typically high-quality, nonwoven fabric, hot air cotton, & melt-blown fabric. The nonwoven fabric is hydrophobic, and is water and droplet-proof. Moreover, the hot air cotton is soft and ensures slower air velocity.
Additional hypo-allergenic layers are skin-friendly and deter further particle penetration. This type of multi-layered design contributes to a better mask design. Speaking of design, the KN95 face mask has a 3D foldable design, as well as a bendable nose bridge clip to fit the face better and firmer.
As a preventive measure against COVID-19 the World Health Organization has recommended respiratory face masks. From the evidence the WHO have given * face masks are effective against virus transmission and infection. Health Care Professionals in Bunker Hill are using KN95 masks. The consensus is that these masks are 95% effective against particles, bacteria and viruses. Nevertheless the World Health Organization indicates that not enough studies have been done to conclude conclusively that masks are effective against the CORON-19 virus. Nevertheless the WHO still advise that face masks be used as a preventative measure against COVID-19.
Even though the KN95 and N95 respiratory masks are designed for a one time use, in light of COVID-19 Crisis and the shortage of PPE supplies, the CDC recommends reuse. Strategies for extending respiratory face mask use can be found at The National Institute for Occupational Safety and Health (NIOSH).
NIOSH indicates that N95 and KN95 masks may be reused if stored properly and if only used by one individual. One can use a respiratory mask for an extended period for one day after which the mask should not be used.
KN95 masks filter effiency is 95%+ making them as good as N95 masks and better than surgical masks (95%) and PM 2.5 filter masks (60%). Generally, these masks are very effective against airborne viruses, bacteria and particulates. Their efficiency was tested and proven through international regulations and regulatory standards of FDA, CDC, etc.
Mask filter efficiency according to studies however do show a drop in filter efficiency after sterilization or extended use. Mask efficiency can drop over 50%. This can be explained by the simple fact that these masks have been designed for one time use and should then be disposed of. Their extended use and reuse requires discretion and they can only be reused if stored properly and if it maintains its fit and function.
According to the Crisis Standards of Care by the Center of Disease Control (CDC), one should follow these measures:
- Before and after touching and adjusting the respiratory mask, you should clean ones hands with soap and water, or an alcohol-based sanitizer with at least 60% alcohol.
- Avoid touching one’s mask.
- When touching & adjusting one’s mask, use clean (non-sterile) gloves.
- Ensure one’s mask fit or structure has not been compromised in any way.
- Check to ensure if the mask components including the nose bridge, straps, and nose foam material did not degrade (which can compromise mask efficiency, fit, and seal).
- Always ensure you don’t leave a used face-mask where anyone can touch and use.
Not every brand of KN95 mask is created equal and because of the high demand for PPE it is quite likely some are counterfeit. How can one tell?
- The respirator mask is approved for children. No masks have been sanctioned by NIOSH for use by children.
- Attached to the respirator are decorative attachments or fabrics.
- On the box or packaging is an FDA logo. (The FDA does no authorize the use of their name or label on any face-mask packaging).
- A NIOSH logo or a TC number on a KN95 respirator. (Only an American-market N95 mask will you see a NIOSH logo).
- The face mask has no markings on it whatsoever.
- Instead of ear loops the KN95 mask has straps. There are no straps on a KN95 mask.
Here are some further tips to know if a KN95 face-mask isn’t fake:
Flammability: The material in a certified KN95 face-mask will melt but not ignite when exposed to an open flame. Fake masks will burn when exposed to an open flame.
Permeability: A certified KN95 face mask should restrict the airflow going in and out of the mask. You can test this by trying to blow out a candle or a flame of a lighter by blowing through the mask. With a KN95 rated face mask, you shouldn’t be able to blow out the flame no matter how hard one blows.
Liquid resistance: If a mask is KN95 certified, it will have a layer that will prevent the passage of fluid. One can test this by pouring some water into the mask. If certified the KN95 mask will contain all the water with no leakage, while a counterfeit mask will allow the water to flow through the mask.
Fitting the KN95 properly do this:
- Wash your hands with soap and water thoroughly or an alcohol type sanitizer before wearing your mask.
- Holding the inside of the KN95 mask facing up, tuck the mask under the chin.
- Place the earloops over each ear.
- Place and adjust the mask on your nose by using both of your hands. You should mold the nosepiece to the shape of your nose and push downwards on each side of the nosepiece.
- For your respirator mask to operate properly, always check the fit to see if it seals properly. With out changing the mask’s position, put both hands on the mask and exhale. If air leaks adjust it, pay particular attention around the nose piece.
“The KN95 is practically equivalent to a N95 in every aspect,” says Amin. “Customers seem to believe that the N95 is superior at blocking airborne particles, but the KN95 is just as good, if not better,” he insists. “Many N95 masks are also made in parts of China and Asia so the notion that all N95 are U.S. created is inaccurate as well.” The FDA has released a list of approved N95 masks here Source: https://www.rollingstone.com/product-recommendations/lifestyle/n95-vs-kn95-masks-1044184/ See also https://ppe4wholesale.com/kn95-3ply-masks/ for wholesale purchases of our 3 Ply Surgical Mask and KN95 product line as well as the CDC [Center for Disease Control] KN95 test results for our KN95 manufacturer.