HEPA FILTER MERV RATING. MERV RATING

Hepa Filter Merv Rating. Katadyn Water Filter Bottle. Diesel Fuel Filter Heaters.

Hepa Filter Merv Rating


hepa filter merv rating
    hepa filter
  • A high efficiency particulate air , or HEPA , filter is a type of high-efficiency air filter.
  • (HEPA Filters) Class of air filters which meet a minimum performance level of 99.97% on 0.3 microns efficiency. (This is only an efficiency test and may not show small pin holes or leaks.) In the cleanroom market HEPA is normally rated at 99.
  • Filter that traps airborne particles by forcing air through very dense mesh.
    merv rating
  • Minimum Efficiency Reporting Value, commonly known as MERV Rating is a measurement scale designed in 1987 by the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) to rate the effectiveness of air filters.
  • The MERV (Minimum Efficiency Reporting Value) rating of a filter describes the size of the holes in the filter that allow air to pass through. The higher the MERV rating, the smaller the holes in the filter, the higher the efficiency.
hepa filter merv rating - HONEYWELL 20x25inch
HONEYWELL 20x25inch POP UP REPLACEMENT HIGH EFFICIENCY MEDIA AIR CLEANER MERV 11 EFFICIENCY RATING
HONEYWELL 20x25inch POP UP REPLACEMENT HIGH EFFICIENCY MEDIA AIR CLEANER MERV 11 EFFICIENCY RATING
This revolutionizes air filtration with a design that self-assembles to drastically reduce installation time and the messiness of replacement, while maintaining a highly efficient MERV 11 air-filtration rating. When maintenance is required, just remove, collapse and dispose of the entire filter - no more separate parts (pleat combs, inner frames) needed! Key Features:No assembly required, Fiberglass-free filtration (fiberglass is an American Lung Association lung irritant), Quick, easy maintenance. Preassembled filter is replaced with just one piece the filter - making simple homeowner maintenance. Additional 1inch filtration provides more surface area for higher efficiency air filtration. Universal fit. PopUP is available in six sizes, compatible with all Honeywell and most competitive MACs. Limited Warranty. Dimensions: (in.) 20 in. x 25 in. Efficiency: Standard Efficiency ratings are based on American Society of Heating, Refrigerating and Air-Conditioning Engineers Standard 52.2-1999.; Efficiency ranges are defined for small particles, E1=0.3 to 1.0 microns; medium particles, Used With: F100F1004, F100B1008, F150E1000, F100F2028. Nominal Dimensions: Length: 20", Thickness: 5", Width: 25".

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Amu Darya
Amu Darya
Rail bridge seen from pontoon bridge. The Amu Darya (Darya means "Sea" in Persian) is a river in Central Asia. It is navigable for over 1450 km (800 miles). Its total length is 2400 km (1500 miles). In Classical Antiquity, the river was known as the Oxus in Greek. The diversion of this river has resulted in massive environmental degradation and human health hazards in the area of the Aral Sea. Dust storms carried soil from the dried out seabed that contained sulphates, phosphates, chlorinated hydrocarbons and other toxic substances found in fertilizers and pesticides across a wide swathe of territory. Soaring rates of cancer, liver ailments, and other diseases were recorded in Uzbekistan's Karakalpak Autonomous Republic. The rate of infant mortality in Karakalpak -- 60/1000 live births in the late 1980s -- was the highest in the Soviet Union. The Turkmen border post was relatively organised. Kemal said a few words to the soldier in charge and there were handshakes all around. My passport was stamped and I was waved on. I had to walk approximately the same 1.5 kilometres back to the Uzbek side of the border. There were dozens of eighteen-wheelers parked at the border awaiting entry into Uzbekistan. At the first part of the Uzbekistan position, one official took my passport and recorded the number in a ledger. He pointed to his stomach and said the word “Doctor”; I assume he was asking me if I was a doctor and could examine him, as he appeared to have some sort of stomach problem. The next official also examined the passport and then told me to fill in various customs forms, all in Russian. I was then sent to another small building for the last part of the process. The first official there took the forms and initialled them. The next official spoke English and he started asking me all sorts of questions. He also wanted to check my backpack. On discovering anti-histamines in my possession he asked if they were narcotics. He wasn’t sure what Gravol was when I explained their purpose and he passed them to his superior. She proclaimed that they were antibiotics. Next he examined my camera. He wanted to know how it worked and if he could see the photographs I had taken. I assume he thought it was a digital camera, which it wasn’t. Then he wanted to know why I was alone, and where I was going. And also why I only had the one small backpack. I gave the reason but this was not satisfactory. Finally, he asked about my money. He wanted to count it. Unfortunately, I had more Pounds Sterling than I had declared. I didn’t have all my receipts from the few days I had spent in London prior to departing for Tashkent and it was too crowded in the checkpoint when I had completed my customs declaration for me to take the money out and count it. He also wanted to count the US dollars and they turned out to be less than what I had declared. In the confusion, I had forgotten exactly how much I had spent in Turkmenistan. Now I was in for a sermon on the correct rules and regulations about Uzbek law and what could happen to someone who broke the law. I apologized and said that I understood my mistake but that was all I could do. I was expecting him to suggest a “solution” and there was no way I was going to offer one. There were other people in the area and I suspect that if we were alone, he may have just taken the money or told me I had to pay an on-the-spot fine. It was a stalemate. Finally he called his superior’s superior and there was more gesturing and talking. I was then told I could go. As I stepped out of the final building, someone attempted to sell me money on the black-market right in front of a customs official while he checked my passport. I looked for Noordlik and the driver. No one was there. I decided to wait in the shade of the building. It was now 1 p.m. and they were supposed to be there at noon. Another man approached me and asked if I wanted a taxi to the perimeter of the border-zone, which was still another 2 kilometres away. The taxi looked to be about 1960’s vintage and I doubted it could actually travel 200 metres. Yet another moneychanger approached me plying his trade. Next one of the guards called me back to the building. What now? He took my passport and spoke to someone on his radio. He looked at me very suspiciously and I wondered whether my inquisitor regarding the money had changed his mind and decided to implement a fine after all. After a short while, the passport was returned to me. I again retreated to the shade and a few minutes later the same guard beckoned to me again. As before, the passport was taken, examined, and returned. I decided that if I walked away from the border-post, I would be less susceptible to being hassled. Yes, it was the desert but the heat was less aggravating than the border guards. I had only walked about 100 metres from the building when Noordlik and the driver pulled up in the car. Noordlik told me that they had been waiti
Silver Linings
Silver Linings
In a chilly warehouse snowy with sawdust, Marek Kobylecki stretches on a plastic post the inverted skin of a silver fox. Using a small knife, he scrapes off bits of fat and flesh, his hands moving with the deftness of a butcher, the grace of a painter, careful not to rip or pierce the dead animal’s skin. “How many can you do a day?” asks Merv Wiseman, operator of M&E Fur Farm Inc. in North Harbour, Placentia Bay, Newfoundland. “About 130,” Kobylecki replies. Wiseman, pleasantly surprised with Kobylecki’s efficiency, jokes to his colleagues that they may not need any more workers afterall. But Wiseman doesn’t take it for granted, for he knows how hard it is to find employees this time of year. He has employed Kobylecki from Poland on a short-term contract. Later in the week, he’ll have another worker come in from Quebec. “I find it difficult to get the kind of skilled work that I need here in Canada, and even unskilled labour, quite frankly,” says Wiseman. He’s been having trouble finding labour over the past five years because of the workforce’s changing landscape. “The demographics tells us that the workforce is an aging one. Many are retiring and the few younger workers are looking for other types of work,” he says, noting they’re more drawn to urban centres. As chair of the Canadian Agricultural Human Resource Council, he sees this not only in his own business, but others too. “It’s part of an emerging issue that we’re seeing in all sectors, not just fur industry,” Wiseman says. The first three weeks of December marks the harvesting season for Wiseman’s fox fur farm. It’s a busy time — by the end of the month, 1,500 pelts will be ready for export to Finland for the Helsinki Fur Exchange auction, where international brokers and garment dealers will bid on Wiseman’s furs. Wiseman says he values foreign workers’ skills and experience in fur skinning, fleshing, stretching and drying during this hectic time. “I find the work ethic is absolutely tremendous. I haven’t seen anything like it in the level of production,” he says. Workers like Kobylecki have honed their fur farming skills in Scandinavia, which produces 90 per cent of the farmed fur in the world and are the industry leaders in both skill and technology. The number of hours and high rate of pay is a major incentive for foreign fur farm workers to come to Canada. “They can work as much as they want,” says Wiseman, “and a good wage here is a very good wage in Poland, for example.” Wiseman believes the future for the province’s $50-million fur farming industry is bright. “We’re very well positioned to manufacture fur. We have good raw materials.” Still, he worries about the recent trend of labour shortages for rural areas, in both his own industry and others. “I don’t believe the resource-based industries can pay the money that’s expected (from young workers) so we have to find other ways to attract them, and not always on a monetary basis — it’s to do with the love of the job, the community and basic lifestyles that people would look at in rural parts of society. "We have to sit up and take notice, or we’ll have empty farms and empty boats.” -- Originally published in the Dec. 9, 2010 edition of the Packet.

hepa filter merv rating
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