Weekly cleaners

Table 10 Enzymes Commonly Used in Weekly Cleaners... 

Marketed lens care products fall mainly into the following categories cleaners, disinfectants, lubricants, and multipurpose products. Cleaners are subdivided into daily or weekly cleaners. Disinfectants comprise solutions containing chemical antimicrobial agents, which do not require heating the lenses, and preserved or unpreserved saline solutions, which are used with an electrical thermal device for lens disinfection. These products are also used to rinse contact lenses. Lens lubricants are intended to enhance the comfort of lens wear and are used prior to insertion and during wear. Multipurpose solutions are intended to accomplish... 

There are two types of weekly cleaners those containing enzymes and those containing concentrated surfactants. Products containing enzymes for daily use are usually accepted by the patients and recommended by practitioners. Commonly used enzymatic products are listed in Table 2. 

Membrane-deaning strategies are numerous and generally remain proprietary information. Physical deaning by relaxation or backwashing is used on a frequent basis but the efficiency tends to decrease with filtration time. As irreversible fouling accumulates on the surface, chemical cleanings of various intensities (i.e., cleaner concentration used) can be applied on a weekly to yearly basis [20]. 

Do not wear new clothing or clothing which has just come from the dry cleaner. Let them air out for a week in front of an open window or outside under an awning. 

While the majority of darkroom chemicals are not harmful with occasional exposure, exposure to any chemical is never good, even household cleaners. Suppose you clean your house once a week with an over-the-counter heavy-duty household cleaner. Certainly you should use gloves, but what if you don t No lasting harm will necessarily come to you. But suppose you make your living as a janitor and use the same household cleaner every day. In this case it is imperative that you use gloves due to the high incident of exposure. The same is true for the darkroom. 

Mrs KT, a 52-year-old hospital cleaner, is admitted as an inpatient to your oncology ward with symptoms from advanced colon cancer. Her GP referred her to the hospital oncology team three weeks ago for investigations (including colonoscopy and subsequent biopsy of a colonic mass, as well as whole body computerised tomography (CT) scan) that revealed stage IV metastatic colon cancer. Her consultant oncologist has now admitted her for FOLFOX systemic cytotoxic chemotherapy treatment. 

Most of the cleaners marketed are out-of-the-eye cleaners however, in recent years there has been a trend to try to develop cleaners for use while the lenses are inserted. A specific instance where such products could be beneficial is the case of the extended-wear lenses, which are not removed daily but are worn up to a week at a time. Generally, these cleaners are less effective in removing deposits already formed on the lens surface. However, they may play a role in retarding deposit formation. 

Cleaners for lens wearers are used either on a daily or weekly basis and are fairly innocuous. Even upon gross misuse, they are not likely to be sight-threatening. Professional cleaners, however, are potent as well as toxic if not used properly. They are also more likely to damage the lens if used too frequently. 

ProFree/GP weekly enzymatic cleaner Allergan Papain Plant Tablet... 

If your plants are to be consumed, a separate reservoir may be made which holds only water. Produce and herb plants should be moved to this water only resen/oir the last 2 weeks before use. During this two-week period, the plants will use up most of their nutrients, resulting in a cleaner final product. 

Blooming plants that will be hanrested in 2 weeks should be placed in a separate reservoir without any nutrients for their last 2 weeks before blooming. This will force the plant to use up most of the stored chemicals and will result in a cleaner plant with less chemical content. 

This yeast exists as a 24-hour variety that produces 14% and another variety produces 18% in a week. I have tested both types of this yeast and found it absolutely superior The alcohol produced by this yeast makes the mash almost so clean that no carbon purification is required (I am NOT exaggerating). If you use the type that produces 14% you must double distil otherwise the spirit will not be strong enough. The 18% version only needs a single distillation to give a good strength. It also ferments cleaner but the 24 hour version produces a somewhat better quality. 

Dust may be regarded as the ideal material for detection and identification of indoor biocides and any of their residues still existing. Commercial vacuum cleaners ean be used for taking samples. Analysis using the < 63-pm fraction of dust lead to results that are more reproducible than those for any other fraction. Reliable results are only obtained under equilibrium conditions in rooms therefore there should be no cleaning for at least one week before dust samples are taken. Since the Umweltsurveys and two case control studies published recently are based on representative samples for household du.st of the German population (especially PCP, lindane and pyrethroids), the assessment of results is possible by comparison with reference values. 

---