A portable water bottle has a bottle body, a lid assembly detachably connected to an upper end of the bottle body, a filter mounted in the lid assembly, a base detachably connected to a lower end of the bottle body, a temperature control module mounted in the base, and a power module mounted in the base. Liquid stored in the bottle body can be filtered by the filter when being poured out of the bottle body, so as to allow a user can drink the liquid directly and immediately. Moreover, the temperature control module is capable of heating or cooling down the liquid in the bottle body, so as to provide the user with the liquid having the temperature that is suitable for ambient it temperature or physical conditions of the user.

A waterproof dry bag with water potable material that utilizes a sealable connection to enable the user the option of collecting water and dispersing it through a bottom of the bag and which can be filtered with a water filter device. The bag can also be used to pump an air mattress.

A water purification system includes one or more UV light sources that produce germicidal UV light and provide the UV light to a given amount of fluid contained in a chamber as a batch or as flowing through the chamber. An inner surface of the chamber, that may be reflective, is coated with a thin plastic film, such as polypropylene, that is highly transmissive to UV germicidal light. The thin plastic film separates the inner surface from the fluid, and the UV light passes through the thin plastic film to reach the fluid that is being purified in the chamber. The thin plastic film may be melted at relatively low temperatures to provide heat sealing of the surface to produce the chamber. Alternatively, the thin plastic film may be readily shaped as a bag or pipe that contains or directs fluid flow.

A portable water purifying bottle comprises: an upper cover, having a water output port; a filter core component, disposed inside the upper cover, and located below the water output port; and a plastic cup sleeve, sleeved into a lower portion of the upper cover. The portable water purifying bottle is simple in design, the plastic cup sleeve made of silicone for storing water is retractable for easy carrying, thus fulfilling the needs of outdoor user. Further, the portable water purifying bottle is able to provide water output at fast speed to save time, while its appearance is compact and pleasing, hereby having a good prospect in the market.

A field water purification system filter is described. The filter includes a water tight enclosure formed between two layers of a polymeric material, an inlet and an outlet are coupled to the water tight enclosure. A filter envelope including a quantity of filter media is inside the water tight enclosure. The water filter having a minimal thickness when not filled with water. The filter envelope is formed by a first set of bonded segments of the two layers of polymeric material. The filter can also include an outer channel having a first side formed by the water tight enclosure and a second side opposite from the first side. The second side can include a second set of bonded segments of the two layers of polymeric material interspersed with a set of nonbonded segments, the nonbonded segments defining openings in an intermittent barrier between the outer channel and the filter media.

Described herein are devices for providing drinking fluid from feed sources comprising: a first reservoir, a filter for mechanically removing particles and a second reservoir for receipt of the processed feed fluid. A continually disinfecting element is disposed in either or both reservoirs to remove additional materials from the fluid. Drinking fluid is provided in a portable device. Optional light sources are provided to interact with the disinfecting elements and/or provide an indication of the contained suitability of such disinfecting elements. A method for creating drinking fluid from a feed source is also disclosed.

A water treatment device (100) can include a chamber (104) having an inlet (108) to receive water contaminated with pathogens and an outlet (110) to dispense treated water. The water treatment device (100) can also include a catalytic element (130) disposed in the chamber (104) to deactivate the pathogens in the water via at least one of electrocatalytic activity and photocatalytic activity. The chamber (104) and/or the catalytic element (130) can be configured to mix the water as the water flows from the inlet (108) to the outlet (110) thereby exposing the pathogens in the water to the catalytic element (130).

Provided are flexible containers for holding a concentrate, the containers comprising: a flexible body holding the concentrate, a spout, a filter element disposed in the spout, the filter element comprising a filter and an attachment element configured to attach to a water source. Also provided are methods of reconstituting concentrated products using the flexible containers.

Provided are flexible containers for holding a concentrate, the containers comprising: a flexible body holding the concentrate, a spout, a filter element disposed in the spout, the filter element comprising a filter and an attachment element configured to attach to a water source. Also provided are methods of reconstituting concentrated products using the flexible containers.

A two-stage filtering system including a first and second filter container. The first filter container has a first filter assembly with a foam filter sleeve enveloping a fluid intake device, a connected valve, and transfer tubing. The second filter includes a pump connected to a spout, a second stage splashguard strainer, a second stage cup filter, and a second filter assembly. The second filter assembly includes at least one main filter comprising at least one carbon body filter enveloping a filter chamber, and exit tubing. The first filter container is structured to stack on top of the second filter container and the transfer tubing is structured to transfer first stage filtered fluid to the second filter container. The pump is structured to draw second stage filtered fluid from the second container through the exit tubing and expel the second stage filtered fluid out the spout to provide purified water.