Sales Process


Do you have a minimum order quantity for all of your items?

Yes, we do. But we also entertain purchases below the minimum quantity. To order, please email

Do you accept Purchase Orders?

Yes, we do accept Purchase Orders from Federal and Local Government Agencies.

I am Tax Exempt – how can I remove the tax from my order?

You can email your tax-exemption / reseller certificate to along with your order and we would send you a special quote with tax removed. Alternatively, if you register an account with us, we would update your account so the tax is removed from all your future orders.

Where can I obtain FDA certification/SDS for the products?

These are all available - please email your request to and we would email you a copy.

We have our products in stock at our warehouses across the continental US. Our products are manufactured here in the USA, or from Malaysia, Vietnam and China.

Do you provide special discounts for large orders?

Yes, we can provide special offers for bulk orders – please feel free to email us your requirements to with the list of products and order quantity and we would prepare a special quote for you.



What is the average delivery time after I place my order?

We usually have the listed products in stock and would ship them to you on the next business day. If we don’t have sufficient stock to fulfill your order, our average turnaround time would be 7-10 days.

When will my order ship?

If you order by 12:00 PM EST time (Mon.-Fri.) from anywhere in the continental United States, your order will ship on the same day. Orders placed after that time, will be shipped on the next business day.

When will I receive my order?

We are using ground shipping for the orders. Orders would be shipped from our warehouses in Los Angeles, California or Huston, Texas; and a tracking number will be provided on the same day.

What is an Estimated Shipping Charge?

For orders that are above MoQ, shipping is included, but for orders below the MoQ, a small shipping and handling fee would be added.
For Disinfection Cabinets, shipping will be included.


Cetrix is committed to customer satisfaction. Each return that meets our guidelines below will receive a full refund within 30 days.

To ensure quality and maintain integrity in the event of damaged or discrepant orders, please review the following guidelines carefully.

Exchange and Returns policy

If your items are damaged, defective or incomplete, a request for a return or refund must be made within 7 business days of the original date of receipt. In the event of a mistake, we will do our best to ensure returns are handled quickly and fairly.

The items needed to be exchanged or returned must be requested within 7 days upon receipt of items, at your expense. The items must have original tags attached, must be unused, and you must send your receipt from purchase. Items are to be shipped prepaid, insured, and securely wrapped to prevent damage. Cetrix will not be responsible for items lost in transit back to us. Shipping and handling is non-refundable.

Refunds can be made within 30 days after we have received the returned shipment. If you are exchanging an item, we will send the new item to you if we have the item in stock; otherwise, we will send you a refund.


UVC Disinfection Cabinets

Can Ultraviolet Light Kill Coronavirus?

When used appropriately, ultraviolet radiation is very effective at killing or deactivating pathogens. Cetrix disinfection cabinets are equipped with UVC (germicidal) lamps which offer constant UV output over their complete lifetime, for maximum security of disinfection and high system efficacy.

How much time does it take to disinfect?

Every time the UV button is pressed, the UVC (germicidal) lamps will turn ON for 5 minutes which to ensure the light will be exposed to surface of the equipment inside the cabinet. Users can change the position or direction of any objects inside the cabinet and repeat the process to ensure the light is exposed to all surfaces of objects inside the cabinet.

What is the lifetime for the UVC (germicidal) lamps?

The useful lifetime for the lamps is 9000 hours. Considering that every time the UV Button is pressed, the lamp will be turned On for only 5 minutes, the lamp can work for up to 100,000 times of disinfection.

Is UVC light harmful for humans?

Yes the UVC light can be harmful for human if exposed in long periods of time. However, UV-C light radiation is blocked by glass and will have no harm according to the International Ultraviolet Association

Should UVC lamps be cleaned?

Depending on the surrounding environment, UVC lamps should be checked periodically (every three months), and can be cleaned with a dry cotton cloth or paper towel. Wear rubber gloves and clean with alcohol only. This will also help maximize lamp life.


What are the differences between Medical, N95, and KN95?

A medical mask is a loose-fitting, disposable device that creates a physical barrier between the mouth and nose of the wearer and potential contaminants in the immediate environment. An N95 respirator is a respiratory protective device designed to achieve a very close facial fit and very efficient filtration of airborne particles. Surgical N95 Respirators are commonly used in healthcare settings and are a subset of N95 Filtering Face-piece Respirators, often referred to as N95s.

People with chronic respiratory, cardiac, or other medical conditions that make breathing difficult should check with their health care provider before using an N95 respirator because the N95 respirator can make it more difficult for the wearer to breathe. Some models have exhalation valves that can make breathing out easier and help reduce heat build-up. Note that N95 respirators with exhalation valves should not be used when sterile conditions are needed.

N95 respirators are not designed for children or people with facial hair. Because a proper fit cannot be achieved on children and people with facial hair, the N95 respirator may not provide full protection. In this case, using a disposable or medical mask is recommended.

Most N95 respirators are manufactured for use in construction and other industrial-type jobs that expose workers to dust and small particles. They are regulated by the National Personal Protective Technology Laboratory (NPPTL) in the National Institute for Occupational Safety and Health (NIOSH), which is part of the Centers for Disease Control and Prevention (CDC)

What are the differences between N95, KN95, and FFP2?

The N95, KN95, FFP2 respirators have almost the same filtration efficiency. The main difference between these respirators is that they are tested by different nations.

The N95 respirators are certified by the U.S. National Institute of Occupational Safety and Health (NIOSH) with a tested 95% filtration. The KN95 respirator is a particulate-filtering mask tested with China’s criteria. The FFP2 is a filtering face-piece score of 94% filter capacity tested by Europe.

Facial Protection

What are the benefits of wearing a protective face shield?

A face shield can provide additional protection to other facial areas that safety glasses or goggles cannot. Face shields are considered to be a secondary protector and must always be worn over protective safety glasses or goggles. To provide better face and eye protection, a face shield should have crown and chin protection and wrap around the face to the point of the ear. Disposable face shields for medical personnel made of light weight films that are attached to a surgical mask or fit loosely around the face should not be relied upon as optimal protection. They will protect the eyes and all parts of the face.

What do eye goggles protect from?

Protective goggles form a protective seal around both eyes where the material is tight or flush to the face.


Should I buy nitrile or vinyl gloves?

When deciding between nitrile and vinyl gloves, it can be confusing trying to determine which type of glove is ideal for you.

Nitrile gloves are made out of synthetic rubber, and are an ideal alternative when latex allergies are of concern. Nitrile gloves are the superior glove when it comes to puncture resistance. Nitrile gloves are often referred to as “medical grade”.

Nitrile gloves are much more resistant than Vinyl gloves but are more expensive. The biggest differences are in elasticity and mechanical resistance. For this reason, vinyl gloves are less sensitive and break more easily, even with a simple finger press.

Gowns, Covers, & Coveralls

What is the difference between Isolation and Surgical Gowns?

Disposable isolation gowns are protective articles used by medical personnel to avoid exposure to blood, body fluids, and other infectious materials, or to protect patients from infection. The gown isolates and prevents both medical personnel from being infected or contaminated and prevents the patient from being infected. Disposable surgical gowns play a two-way protective role during the operation.

The surgical gown establishes a barrier between the patient and the medical staff to reduce the probability of medical personnel contacting the patient's blood or other body fluids during the surgical procedure. Second, the surgical gown can block the colonization/adhesion of the medical staff's skin or clothing.

What is the difference between Level 1 and 3 Isolation Gowns?

The levels of protection of each gown provide as the levels increase, for a specific purpose. Level 3 Isolation Gowns provide the most protection; it is Anti-fluid, Anti-Alcohol, Anti-blood, and Anti-static. The level 1 gown is usually used for basic care, standard isolations, usually for Visitors. The greater the level, the more ideal it is for healthcare providers and employees.

Anti-Bacterial Wipes and Sanitizers

How effective are these wipes?

Our wipes are highly effective in removing bacteria, germs, sweat, dirt, body oils as well as deodorize and protect surfaces.

What are the wipes made of?

The Ingredients are Polypropylene – 90%, Water – 7.5%, and Ethanol – 2.5%.

Does it easily dry out? Is it resealable?

Yes. The item is contained in a tight & resealable plastic container. No need to worry about your wipes drying out as it will be resealed tightly.

Are alcohol-based hand sanitizers flammable?

Yes, alcohol-based hand sanitizers are flammable and should be kept away from fire or flames.

Are foaming hand sanitizers better than gel sanitizers?

There are no tangible differences between the two. The choice between gels versus foam is really a personal preference. Some people feel that gel hand sanitizers are easier to move around the hands. Others prefer foam because it tends to cling to hands rather than roll off or drip.

Test Instruments

How do infrared thermometers work?

An infrared thermometer houses optics that collects the radiant infrared energy from the object and focuses it onto a detector. The detector converts the energy into an electrical signal, which is amplified and displayed.

Are infrared thermometers accurate?

Infrared thermometers have the same level of accuracy and reliability as that of a rectal or oral thermometer. However, the accuracy depends on how and where you use these thermometers.

What is the best way to clean an Infrared thermometer?

To clean IR Thermometers, use a soft cloth or cotton swab with water or medical grade rubbing alcohol and carefully wipe first the lens and then the body of the thermometer. Allow the lens to dry fully before using the thermometer. Never use soap or chemicals and never submerge it in water.