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Tips for Safe Use

Ultra is intended for use, and is most effective in clear 

water but can also be used to treat turbid, murky or cloudy 

water in an emergency. By doubling treatment time 

(treating the volume of water twice), Ultra can treat water 

that might be described as: “much closer to clear than 

opaque,” “obviously not clear,” “obviously cloudy,” “objects 

viewed through the water are visible but blurry,” or “as 

cloudy as weak lemonade.” If the water is less clear, filter it 

first with the SteriPEN

® 

PreFilter, FitsAll Filter

® 

or other 

method for best UV purification results.

Ultra is not designed to treat volumes of water larger than 

one liter. If more than one liter needs treatment, the water 

should be divided into ½ liter and one liter volumes and 

treated separately.

When operating properly, 

the UV lamp will emit visible light 

as well as UV light. If the lamp is not emitting visible light, it 

is not functioning properly and should not be used until it 

has been repaired.

Agitation of water by stirring Ultra or rocking the container 

is necessary, as it promotes uniform purification.
Ultra is not intended to purify water above the surface of 

the water in the container, such as droplets on the sides of 

the container.
Ultra is not intended to purify surfaces of a drinking 

container, like the mouth of the bottle. Be certain that you 

always wipe the bottle’s mouth with a clean, dry cloth 

before drinking.
Ultra may be used in glass, plastic, ceramic or metal 

containers, as they all absorb or reflect UV light, thereby 

shielding the user from UV exposure.
Ultra is not intended for use by children.
Ultra is a high voltage device. Removal or tampering with 

the electronic circuit board or lamp assembly may cause 

injury, or damage.  Do not open, expose, modify or touch 

internal circuitry; doing so can lead to high voltage shock.
Do not attempt to bypass water sensor; it is an important 

safety feature.
As with other fluorescent-type lamps, Ultra contains a 

small amount of mercury. At the end of its life, please 

dispose of Ultra properly. For specific instsructions contact 

your local waste disposal organization.
Ultra is not intended to treat liquids other than water. Do 

not use in water with ice. Do not use in water above 

120°F/49°C.
Do not use UV lamp as a light source.
Do not use near skin, eyes or insert into bodily orifices.
As with any other water treatment system, always have a 

backup method.
While carefully controlled microbiological testing of all 

SteriPEN products has been conducted, use of all 

SteriPEN products in the field may produce results that 

vary from our laboratory test data.
Do not use in any manner other than instructed in this 

User’s Guide.

Frequently Asked Questions

Get in touch! We are always happy to hear from you:

visit 

www.steripen.com

, email 

[email protected] 

or 

call

 1-888-826-6234

.

Is it bad if I unplug Ultra before charging is 

complete?

 

No. You will not damage Ultra’s circuitry or 

memory by unplugging it before its charging 

cycle is complete.

How many treatments can I expect to get out of 

a fully charged battery? 

Around 50 full-liter treatments.

What happens when I’ve used Ultra 8,000 

times?

 

Ultra will display the sad face and crossed-out 

bulb icon to indicate that your bulb has reached 

the end of its life.

Ultra’s bulb is shining a purple, rather than blue 

light - is it still working?

 

Yes. The visible light indicates that the bulb is 

working regardless of its color.

Can I take Ultra on a plane? 

Yes. Ultra and all SteriPEN products are allowed 

in carry-on bags, as well as checked luggage.

Does altitude affect Ultra’s ability to purify 

water?

 

No. SteriPEN technology and product design 

have been tested and used on Mount Everest for 

years.

Can I use Ultra to treat more than 1 liter at a 

time?

 

No, we do not recommend it. Ultra’s 

effectiveness is ONLY tested and certified for 

volumes up to 1 liter.

What about parasites like worms and their 

eggs? Does Ultra treat for them?

 

Due to animal testing restrictions, Ultra’s 

effectiveness against such parasites has not 

been certified. 

Care & Cleaning

While Ultra’s battery compartment is designed to be 

highly water-resistant, it is not waterproof. Avoid 

submerging Ultra’s USB end in water.

Make sure to dry Ultra after each use.

When not in use, Ultra should be kept in a safe place 

that is clean and dry. It should not be exposed to 

temperatures above 140°F/60°C or below 

-4°F/-20°C.

To clean Ultra, wash with a soft cloth and a mild 

soap solution. Rinse soap from device and dry with 

a clean, soft cloth. 

When storing Ultra for prolonged periods, 

occassional recharging (every 3–6 months) will help 

maintain good battery health.

If Ultra’s bulb is cracked, chipped or damaged, don’t 

use it. Return it to the store or contact us for repair. 

Email us at [email protected] or call us at 

1-888-826-6234 for help. Do not try to fix it yourself.

 

Optional Accessories

Check out these other great products from SteriPEN 

to help you get the most out of your next adventure!

Visit www.steripen.com or call 1-888-SteriPEN to 

learn more!

Drink the water, but filter it first. 

The SteriPEN FitsAll Filter

®

 

mates with most wide-mouthed 

reuseable water bottles to filter 

out leaves, dirt and particulates. 

Lightweight and easy to use 

and will help ensure optimal UV 

purification.

Always be prepared.

With lightweight Replacement 

Filter Cartridges you never have 

to worry about what’s getting 

into your water. The 40 micron 

screen catches debris and 

helps your SteriPEN be as 

effective as possible.

SteriPEN

®

 technology is patented in the USA with further 

U.S. patents pending and patents pending worldwide. 

SteriPEN

®

 is a registered trademark of Hydro-Photon, Inc. 

U.S. Patent Numbers 5,900,212; 6,110,424; 6,579,495; 

and 8,362,432.

Compliance testing of SteriPEN Ultra for the CE mark and BV 

logo was successfully completed by Bureau Veritas.

Conforms to UL Std 61010-1 

Certified to CSA Std C22.2 No. 61010-1

Water Quality Association: SteriPEN

®

 tested 

and Gold Seal certified by 

WQA against U.S. EPA Microbiological 

Water Purifier Standard.

Patented & Certified

Directions for Use 40 C.F.R. §156.10(i)(2)
It is a violation of Federal law to use this product in a manner 

inconsistent with its labeling.
40 C.F.R. §156.10(i)(2)(ii)
SteriPEN

® 

exceeds U.S. EPA Guide Standard and Protocol for Testing 

Microbiological Water Purifiers, destroying over 99.9999% of bacteria, 

99.99% of viruses, and 99.9% of protozoa when used as directed. 

SteriPEN

® 

is not a sterilizer.

3-year warranty for any manufacturing defect. For product registration 

and complete warranty information, please visit 

www.steripen.com/warranty or contact your local distributor.
While carefully controlled microbiological testing of Ultra has been 

conducted, use in the field may produce results that vary from our 

laboratory test data.
This device complies with Part 15 of the FCC Rules. 

Operation is subject to the following two conditions: 

1. This device may not cause harmful interference, and

2. This device must accept any interference received, including 

interference that may cause undesired operation.
CAN ICES-3(B)/NMB-3(B)
NOTE: This equipment has been tested and found to comply with the 

limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. 

These limits are designed to provide reasonable protection against 

harmful interference in a residential installation. This equipment 

generates, uses and can radiate radio frequency energy and, if not 

installed and used in accordance with the instructions, may cause 

harmful interference to radio communications. However, there is no 

guarantee that interference will not occur in a particular installation. 

If this equipment does cause harmful interference to radio or television 

reception, which can be determined by turning the equipment off and 

on, the user is encouraged to try to correct the interference by one 

or more of the following measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment and receiver.

• Connect the equipment into an outlet on a circuit  

 

   different from that to which the receiver is connected.

• Consult the dealer or an experienced radio/TV technician for help.
Warning: Changes or modifications to this unit not expressly approved 

by the party responsible for compliance could void the user authority 

to operate the equipment under FCC rules.

The Fine Print

IQAA

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