UV Hotel Hygiene Detector


UV Powered Hotel Guest Room Hygiene and Cleanliness Checker / Tester

Click here for a full introduction to this product.

Hotels, Motels, AirBNBs and Holiday-Lets, we all use them and need them.  However, with each rented room accommodating potentially hundreds of ‘guests’ each year, we assume; nay hope they are hygienically cleaned and the bed-linen changed after each occupancy.

How can we really be certain this is being done?  None of us actually see how well housekeeping clean our room after we have checked-out!  After all…

A room may look clean, but is it hygienically clean?

With so many bodies using the same shared-room space, it goes with question some guests will be gross and unclean leaving the room in much the same way.

FORENSIC UV for what the eye can’t see ™

What should you be looking for?

Pretty much all human body fluids such as Urine, Semen, Vaginal Fluid, Saliva, Sweat, Feces and Vomit.  In most cases these will not be visible to you in normal light, however, under UV Forensic light they all will all fluoresce.

Shared-use, hotel mattresses can be an ideal home for parasites such as Bedbugs and dust mites. Even transient hitch-hikers such as Head-lice and Body Lice, after their host has departed, can remain present in unchanged, dirty bed linen ready for the next meal!

Yes, it does sound disgusting but thankfully its not the norm and most Hotels and Airbnbs pride themselves on their standards of hygiene and cleanliness.  However, there are many out there who do not, and there will always be lowly paid housekeeping staff who don’t care. So how can we be certain which is which.

Now armed with your own Hygiene Detective Pro, the hidden truth of Hotel Room Hygiene will be revealed!

One of the key reasons why the UV PRO Hygiene Detector is the best Hotel room hygiene checker on the market, is the superior quality, Korean made UV LEDs we use, together with our unique UV PRO FILTER which removes 99% of visible interference light, so you only see the glow of the substance or  surface material to the invisible UV light emitted.

Another reason is its compact, lightweight design which makes it ideal for the regular traveler.  This killer combination produces consistent professional results at an affordable price.

See our short video to see why –> Comparison of UV Torches

See side TAB ‘Using the Detector‘ for Usage Instructions and Pro Tips, along with and a helpful primer on UV Blacklight.

Beware of cheap imitations. If it doesn’t bear our name. Its not the same!

Click here for a full introduction to this product.

Using the Detector

How do you test the hygiene cleanliness of a hotel room?

In fairness to those Hotels, Motels, Airbnbs who are conscientious in maintaining hygiene cleanliness in their rooms, there are many who do not, or have staff who will take short cuts with cleaning and hygiene to make their work load easier.

Its human nature to disregard what we cannot see.  There in lies the problem.

When inspecting the hygiene and cleanliness of a Hotel room, you will be mostly looking for traces of body fluids:

UrineSemen,  Vaginal Fluid,  Saliva,  Sweat and Vomit

under UV light, each of these substances has a natural, low-level fluorescent glow, so do expect a supernova!  The brightness of the fluoresce will vary depending on the substance, its age and amount. Therefore you should only perform the inspection in darkness and you may need to be close to some stains in order to see them.

Hotel Room Hygiene can be split into three areas:

1.  Room Hygiene 

The first thing to do as your enter your room is take a moment and smell the air. Does it smell clean and fresh? If it smells musty or stale, that’s a sign that the room hasn’t been cleaned properly. If it smells a little too strong of air freshener, it may be helping conceal an underlying unpleasant smell within the room.

Moving round the room we find a host of frequently touched items and surfaces, eg: 

Drinking glasses, light-switches, TV remote, door handles, toilet flush, taps, guest book, menu, telephone, mini-bar and room key card etc. 

Each of these items or surfaces ‘should’ really have been hygienically cleaned after each occupancy. The likelihood is some if not all may not have been.

Do the finger-wipe test for signs of dust or dirt and you will know for sure if it has not been cleaned if you touch an item or surface which feels sticky or tacky!  Under the UV light from your Hygiene Detective Pro the surface dirt will show up clearly as glowing specs of dust and fibres and will indicate which surfaces have been housecleaned or at least ‘dusted’.

The Hygiene Detective Pro will help reveal the room’s true state of cleanliness and reveal traces of body fluids remaining on most surfaces. Check the floor and carpets too for signs of permanent staining, along with the walls, bedframe and the sides of furniture.

Hotels are unlikely to deep-clean the carpets, walls, bed-frame or furniture on a regular basis.

Pro Tip:   UV light needs darkness to deliver the best results.  Turn off the lights and close the curtains before conducting your UV inspection.

Pro Tip:   Bring your own anti-bacterial / sterilizing wipes with you to clean these items yourself.

Pro tip:  Bring bottled water and do not use the room drinking glasses.


2.  Bed Hygiene

The assumption we all make, is that all bed-linen; top and bottom sheets and all pillow cases, are replaced with clean laundry after each occupant.  How do we know this is so?  There have been many high profile exposé reports highlighting profound Hotel housekeeping failures (see video examples).  Cost saving is a irresistible force for hotels and hygiene shortcuts in laundry and cleaning will be inevitable. For housekeeping this means …  If it looks clean, leave it; Retook the sheets and fluff and turn the pillows!  Next room.

If we suspect the linen has not been changed then the Hygiene Inspector Pro will help you check the linen for signs of ‘recent use’ and the presence of body fluids remaining on the material!  But that is just on the surface!  The mattress will have been slept on by potentially several hundred ‘strangers’ with who knows what standards of personal hygiene or undeclared skin conditions!

Pillow cases are the one potentially dirty (ie: as used by the previous occupant) surface to actually have a prolonged, intimate contact with your face, mouth, eyes and ears!  The possibility of direct contact with head lice or someone else’s body fluids is reason enough to bring along your own clean pillow cases.

See these short exposé videos

Along with any visible and UV-visible staining or contamination of the mattress, the presence of live Bed bugs is a real possibility. Bed bugs are not known to spread disease, but their bites can be itchy and uncomfortable. Bed bugs are known to be hitchhikers and can be transported from one location to another on clothing, luggage, and other personal belongings. They are small, flat, and reddish-brown insects that feed on the blood of humans and can hide in cracks and crevices found in mattresses, bed frames, and headboards. However, bed bugs can also be found in other areas such as carpets, curtains, and furniture.

Check mattress seams and headboard and surrounding areas with your Hygiene Detective Pro and it will help you determine the hygienic state of the mattress. If you find evidence of Budbugs, you should notify the Hotel immediately and change room.

Note:  When using your Hygiene Detective Pro / UV Forensic Torch on white bed sheets, white pillow cases or white towels, you will see they react strongly to the UV light shining a bright blue, this is due to a chemical present in white cotton to improve its whiteness. The downside to this is that it may prove harder to distinguish Body fluid stains on these white fabrics.  A body fluid stain which has a weaker glow would appear as a slightly darker area on white fabric under UV light.

Pro Tip:   If there happens to spare linen in the room, change the pillow case(s) and sheets or ask housekeeping for clean bed linen.

Better Tip:   Why risk it. Bring you own clean pillow cases to use. Use distinctive patterned or coloured cases so you are less likely to leave them behind when you check out!

Pro Tip:   UV light needs darkness to deliver the best results.  Turn off the lights and close the curtains before conducting your UV inspection.


3.  Bathroom Hygiene

Despite bathroom furniture being specifically made to be easy to clean and maintain, hotel bathrooms are a hot spot for germs and bacteria!  The most obvious, personal hygiene risk is the loo seat. This is the one shared-contact surface which will make actual, intimate contact with your body!

Use your Hygiene Detective Pro to reveal the true state of hygiene in your bathroom. Check down the sides and behind the W.C.  Look into corners and those hard-to-reach places where housekeepers may just skip if they ‘look’ clean enough.  Also look for signs of mold as this can be a strong indicator of lapse hygiene standards.

Pro Tip:   UV light needs darkness to deliver the best results.  Turn off the lights and close the curtains before conducting your UV inspection.

Note: When using UV light to detect body fluids, it is important to be aware of the limitations of this method. UV light can only detect certain types of body fluids, and it can be difficult to identify the specific type of fluid based on its fluorescence. Additionally, UV light can be affected by other factors, such as the presence of certain chemicals or the type of surface the fluid is on.


Not all Hotels are the same!

It’s important to note that not all hotels are the same, and many do take great care to maintain high standards of hygiene and cleanliness. However, it’s always a good idea to take precautions when staying in a hotel or airbnb, such as bringing your own pillows or pillow cases, using disinfectant wipes on surfaces, and washing your hands frequently.

Pro Tip:   Before booking your Hotel or Airbnb, take a few minutes to check out their reviews on travelers guides such as Trip Advisor etc.  Whilst individual reviews cannot be trusted, you can get a ‘feel’ for the standard of accommodation and service they offer.

It’s important to note that not all biological fluids are visible under UV blacklight, and some substances that may appear fluorescent under UV light may not be biological in nature. Additionally, the visibility of these fluids can be affected by factors such as the age of the stain and the presence of other substances.

Do not allow children to use this product unsupervised.

Remember. Safety first!  Do not shine torch beam directly into the eyes or at faces.

Glow chart

Body Fluid Glow Chart

Substance Fluorescence
Semen blue-white
Sweat blue-white
Urine yellow-green
Vaginal Fluid blue-white
Saliva yellow-green
Vomit greenish-yellow
Feces Green / Brown
Blood none
Bedbugs bluish-red
Head Lice / Nits blue-green


It’s important to note that the fluorescence of body fluids under UV light can vary depending on the specific conditions and the individual’s diet, medication use, and health status. Therefore, the colors mentioned above may not always be as listed and may vary. Some body fluids may not fluoresce at all!

Body fluids being UV-illuminated on white linen or white towels may appear as darker patches / stains relative the materials bright response to the UV light.

About UV Blacklight

There is so much mis-information online about UV light (Blacklight) we’ll clear up a few main points here…

Is brighter really better?

No.  Absolutely not.  UV is invisible to the human eye so ideally you should see nothing!  What you do see is visible ‘interference’ light (known as spill) and is a bi-product of poor quality inferior UV LEDs.  This bright, purple glare is not UV and only serves to illuminate the search area, actually making it harder to see the actual fluoresce you are looking for!

The UV rule of thumb is:  The brighter it is, the worse it is!

This is why our UV PRO range are made with a special UV PRO filter which removes all visible light and only lets the invisible UV light through.  This produces great, professional results.

The more LEDs the better?

Again. Absolutely not.  The greater the number of inferior (cheap) LEDs the torch has, the more visible interference light it produces and the worse the result.

Tip:  Avoid any UV Torch with more than 9 LEDS.

Does frequency matter?

Yes. The frequency of UV light emitted determines the quality of results obtained.  There is a sweet-spot for UV which is between 365nm and 385nm.  However, to manufacture LEDs capable of emitting in this frequency range is far more expensive.  The cheap UV torches sold on eBay and Amazon, will use inferior quality Chinese made LEDs emitting in the range of 390 – 410nm.  At this range the UV light is a very poor quality and the visible light output is at its highest (see here for more about UV Blacklight).

GLOWTEC UV PRO Forensic Torches are made using high quality KOREAN made 365-385nm UV LEDs which peak at 380nm with a much lower visible light output. This provides the best balance of quality, performance and price with excellent value for money.

See our short video to see why –> Comparison of UV Torches

What should I expect to see?

That really depends on what it is your are looking at / looking for!

Unlike man-made fluorescent materials such as white fabric, white paper and UV GERM products which all fluoresce brightly under UV blacklight, natural fluorescent substances such as urine and body fluids, which whilst they do glow (fluoresce) under UV light, do not fluoresce brightly! In fact they are generally quite dim, so do not expect a supernova!

The colour shown under UV light is determined by the chemical composition of the substance, not the UV light itself.


UV Source:    9 x UV-LEDs
Operation:    Single Mode (9 LED)
UV Source:    Korean Made UV-LEDs  365-380mn Peak
UV PRO Filter:   365-385nm Passthru
Power output:  0.5 watt
Batteries:    3 x AAA (not supplied)
Construction:    Aluminum
Body Size:   100 x 30mm
Body Colour:   SILVER


See ‘Delivery‘ tab on the menu bar for more detailed shipping and delivery information.

Whilst we can usually turn around most web orders within 1-3 working days. Please allow time for the order to be processed and produced for you. If you have genuinely urgent order, please contact us first to ensure we are able to turn around your order in time.  Please appreciate that there will be other customer’s orders ahead in the queue!

Orders Dispatched:  TUESDAYs (Post/Special-D)   WEDNESDAYs  (Courier)   THURSDAYs  (Post/Special-D)  FRIDAYs  (Courier)

Please Note: We are unable to ship web orders on Mondays.

UK Delivery options

Standard Delivery is a flat rate delivery charge using Royal Mail’s 1st Class Parcel Post.

Special-Delivery (small parcels) and UK Courier (larger/heavier parcels) will provide a swift next day delivery from the day of dispatch and NOT from the date of order.

Note: We do not to offer a specific ‘Next Day Delivery’ option as we cannot realistically guarantee such a service, especially in the current climate.

If you require a recorded / tracked delivery, please select either the Express Delivery or Courier Delivery option at checkout.

EU & International Orders

Owing to the higher cost or processing and shipping EU and International orders we have a £44 Minimum Order Value (MOV) for VAT Exempt Business orders.

However, due to new EU VAT rules, private (B2C) orders have a £135 Minimum Order Value.  Please Note:  Whilst we will not add VAT to your order, VAT will be payable once the goods have arrived in your country.

Business Orders destined for the EU will require a Company Name, VAT Number and EORI Number for customs clearance.

We will only ship EU and International orders at the Buyers risk. Once the goods are handed over to the courier they become the buyers property and responsibility.

For reasons of security and speed, we only ship EU and International orders via Express Courier.  Delivery charges are calculated at checkout.