Category Archives: Cleaning & Disinfection

The Science of Cleanroom Wiper Usage

Wrong way to wipe

Our cleanrooms, laboratories, and other controlled environments routinely offer a broad range of cleaning, disinfecting, and decontaminating equipment such as mops and mats, and consumables, including sprays, swabs, and the ever-popular wipers. But the availability of such tools is, in itself, not sufficient to ensure sterility and hygiene. The missing component? An understanding of best [Read More…]

Are the EZ Bleach™ Disinfectant Tablets fabric safe?

Man in protective suit disinfecting the Hotel room.

Berkshire received the following inquiry on our website:  “Hello, I am wondering if the EZ Bleach™ Disinfectant Tablets are fabric safe? I am going to be using it in an electrostatic sprayer and I want to make sure that the overspray isn’t going to bleach any fabrics that it may come in contact with.” Answer: [Read More…]

What is the ppm for 1 tablet in a spray bottle mixed with 1 liter of water?

1ml dilution guide

Q: Berkshire received the following metric inquiry regarding EZ BleachTM Disinfectant Tablets: What is the ppm for 1 tablet in a spray bottle mixed with 1 liter of water? A: The answer is 958 ppm. Please refer to side 2 of the product information sheet where Berkshire lists the Dilution Guide for a 1000mL (1L) [Read More…]

Can you use the EZ Bleach ™ Disinfectant Tablets with electrostatic sprayers and foggers?

Berkshire-Bleach-Alternative-Tablets

Question: Can you use the EZ Bleach™ Disinfectant Tablets with electrostatic sprayers and foggers? Answer:  End users should always follow the equipment manuals for compatible chemistries.  In general there is no known compatibility issue between EZ Bleach™ and the sprayers/foggers.

How Many Passes With a Cleanroom Wipe Will Get a Surface Clean and Sterile?

Cleanroom Wiping How Many Passes

Answer: Berkshire cannot provide specific recommendations regarding how many swipes/passes of a wiper on a surface will make the surface clean or free of microorganisms.The main reason for this is each situation where wipers are used is different and has many variables, each of which will have an impact on the outcome of any cleaning. [Read More…]

How To Clean a Biological Safety Cabinet

How To Clean a Biological Safety Cabinet

Do your operators use IPA and Deionized Water on their gloves prior to cleaning a biological safety cabinet? Are they cleaning top to bottom, left to right, cleanest to dirtiest? There are specific steps involved with cleaning a biological safety cabinet. Watch the video for cleaning techniques that can supplement your current SOPs and assist [Read More…]

What is a Low Endotoxin Cleanroom Wipe?

Low Endotoxin

A low endotoxin cleanroom wipe has a guaranteed endotoxin limit of <20 EU/device – <0.5 EU/mL. This is especially important when you read the FDA Guidance for Industry: Pyrogen and Endotoxins Testing.  A 3rd party lab should perform the testing and the testing must be on a lot to lot basis. Printed documentation must be [Read More…]

Has Berkshire or a 3rd Party Performed Any Microbial Efficacy/kill Studies on the Satpax® Line of Presaturated IPA Wipers?

Satpax Canister

Question: Has Berkshire or a 3rd party performed any microbial efficacy/kill studies on the SatPax® line of presaturated IPA wipers? Answer: An efficacy/kill study has not been performed by Berkshire or a 3rd party lab for SatPax®.  Because of the number of variables involved when using wipes, it would be very difficult to produce meaningful [Read More…]