Disinfecting or sterilizing liquid and air streams is a common challenge in countless industries. Drinking water production, recreational water facilities, and industrial processing fluids demand the highest safety priority from a microbiological standpoint. Effective removal of microorganisms can be uniquely challenging and often requires redundancy in the fluid treatment process.

Crystar® filtration technology is the next generation of air and liquid filtration membranes with a wide range of applications. It boasts robust and efficient microorganism removal, including enhanced bacteria retention, at affordable operating costs. Crystar® FT also allows the optimal use of other disinfection technologies such as oxidation, through the reduction of chemical needs, or UV lamps, by maximizing the transmissivity in a very clear water.

Crystar® FT: Achieve M.O.R.E.

Our Crystar® technology is based on a proprietary arrangement of recrystallized silicon carbide (SiC) layers, featuring a naturally negative surface charge like most microorganisms and natural organic matter. Combined with a well-controlled and engineered pore size range of 0.25 – 4.0 μm, this enables an excellent trade-off between permeate flux and retention of microorganisms.

This Micro Organism Retention Efficiency (M.O.R.E.) has been demonstrated without the use of coagulants by measurements performed by renowned laboratories in Europe and the USA. (Measurements performed at Fresenius Institute (Germany), Dresden University (Germany), Firmus (France), University of North Carolina (USA))


Crystar® HiPur (0.25 µm R-SiC membrane)
MS2-Phagen virus (30 nm) LRV = 1.7 98% efficiency
Legionnella adelaidensis (0.5 x 2.0 µm) LRV > 5.0 >99.999% efficiency
Pseudomonas aeruginosa (0.5 x 2.0 µm) LRV = 5.1 99.9992% efficiency


Crystar® FT600 (0.6 µm R-SiC membrane)
Escherichia Coli (size 0.5 µm x 1.5 µm) LRV = 4.2 99.992% efficiency
Brevundimonas diminuta (0.2 µm x 0.5 µm) LRV > 3.7 99.97% efficiency


Crystar® HiFlo (4 µm R-SiC membrane)
Cryptosporidium Parvum (4.5 µm) LRV = 4.4 99.996% efficiency
Giardia lamblia (10 µm) LRV > 4.5 99.997% efficiency
Legionnella adelaidensis (0.5 x 2.0 µm) LRV > 3.6 99.96% efficiency
Pseudomonas aeruginosa (0.5 x 2.0 µm) LRV = 1.5 > 97% efficiency

Crystar® filtration technology supports the effective elimination of hazardous microorganisms in various liquid feeds and different applications. For instance, it provides effective cryptosporidium filtration in recreational water, E.coli retention in drinking water, and legionella removal from sanitary hot water. Crystar air filters have the capability to retain microscopic aerosols and particulate matter such as pollen allergens and salivary droplets carrying bacteria or viruses.

Crystar® membranes and filters provide M.O.R.E. in every sense of the word. They are cost-effective alternatives or performance enhancement complements to disinfection technologies for improved safety and efficiency in terms of microorganism removal.