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CIGARETTE FILTER PAPER. FILTER PAPER


Cigarette Filter Paper. Aqua Rain Water Filter



Cigarette Filter Paper





cigarette filter paper






    cigarette filter
  • A cigarette filter has the purpose of reducing the amount of smoke, tar, and fine particles inhaled during the combustion of a cigarette. Filters also reduce the harshness of the smoke and keep tobacco flakes out of the smoker's mouth.





    paper
  • Wallpaper

  • a material made of cellulose pulp derived mainly from wood or rags or certain grasses

  • composition: an essay (especially one written as an assignment); "he got an A on his composition"

  • A newspaper

  • Material manufactured in thin sheets from the pulp of wood or other fibrous substances, used for writing, drawing, or printing on, or as wrapping material

  • cover with paper; "paper the box"











cigarette filter paper - All In




All In One Automatic Cigarette Roller & Storage Box (Silver) #80


All In One Automatic Cigarette Roller & Storage Box (Silver) #80



This automatic rolling box is perfect for any one who loves to roll their own cigarettes. With a large storage compartment you can store plenty of your favorite loose leaf tobacco into the inside tin. There is also plenty of room for rolling papers and possibly in even filters. You can also pre-roll your cigarettes and store them in this case. It's perfect! The automatic roller easily allows even novice rollers to effortlessly roll perfect cigarettes. This machine work automatically with only 3 easy steps. First place a paper in the rolling surface, then fill the paper with your favorite tobacco and lick then close the box for a perfect joint every time. The fully rolled, ready to smoke cigarette is then ejected from the top of the box. You will love rolling your own cigarettes! It is cheaper and tons of fun.










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Vintage Kent Micronite Cigarettes: Asbestos & Non-asbestos




Vintage Kent Micronite Cigarettes: Asbestos & Non-asbestos





Three examples of vintage Kent Micronite cigarette filters by P. Lorillard. Although each cigarette is imprinted with, "MICRONITE FILTER" on its paper wrapper, yet not all "Micronite" filters were created equal.

Left: 1952 with crimped crepe paper layers mixed with crocidolite asbestos.

Middle: 1957 with dense cellulose-acetate dyed bluish-grey (non-asbestos).

Right: 1959 with dense cellulose-acetate and pale tint (also non-asbestos).

In the past cigarette companies responded to negative press regarding links to lung cancer from cigarette smoking by trying to convince customers that smoking tobacco could be safer by means of adding filters to cigarettes. Consequently, cigarette sales increased to record levels during the “Filter Revolution” as smokers rationalized their habits with these “safer” filtered products. One such cigarette filter product that was popularized was the Kent Micronite Filter.

In 1952, P. Lorillard introduced the cigarette brand “Kent” (named for Lorillard’s then president, Herbert A. Kent) with its trademarked “Micronite” filter. Guarded as a trade secret, it wouldn’t be until years later that the composition of the original Micronite filter became more readily known; it contained asbestos.

Specifically, from 1952 to 1956, the P. Lorillard Company manufactured the original Micronite filter for its Kent brand cigarettes with approximately 15%-to-25% crocidolite asbestos. Crocidolite mineral material is quite peculiar in a variety of ways, but most notably for its rather distinctive bluish-grey color, its asbestiform crystal habit, and its regard by many experts as the most toxic of the 6 regulated asbestiform amphibole minerals.

A published research study found that a single original Micronite filter could contain as much as 10-mg of cricidolite and that a smoker could release an average of 170,000 crocidolite airborne structures from only 2 inhalations of one original Micronite filter. Consequently, a smoker of the original Kent Micronite cigarettes not only inhaled carcinogenic tobacco smoke, but also puffed potentially dangerous amounts of carcinogenic crocidolite asbestos dust. To compound this issue, it was reported that smokers of the original Kent Micronite filters had to draw extra-hard through the dense, bluish filter to get a satisfactory taste, which likely resulted in higher crocidolite dust inhalation than research might suggest. Needless to say, although created to “protect health”, the original Kent Micronite filter instead may have had much more serious detrimental (if not lethal) consequences to the health of its once unsuspecting users.

Why did Lorillard use crocidolite at all? Reportedly, Lorillard researchers originally identified crocidolite as a superior filter media from a declassified technical report from the former U.S. Atomic Energy Commission (AEC). The AEC report described an aerosol filter made with crocidolite that was used to remove radioactive particles with high efficiency at AEC facilities. Consequently, as other cigarette manufacturers competed to bring various filtered products to market, crocidolite appeared to be an ideal candidate ingredient in 1952 for Lorillard’s new Kent brand with the "Micronite" filter.

However, in 1956, for a combination of factors, Lorillard redesigned the composition of its Micronite filter media similar to modern cigarette filters that incorporate cellulose-acetate fibers and removed the crocidolite asbestos ingredient. But, so as not to radically change the immediate appearance of the Micronite cigarette and in keeping with the original Kent filter’s image, the early non-asbestos cellulose-acetate Micronite filter media was tinted light bluish-grey and was promoted as the Kent “New Exclusive Micronite Filter” and also made other later subtle labeling changes; noted primarily by the addition of the word "NEW" on the non-asbestos Kent Micronite cigarette packs.

Some research indicates that Lorillard may have changed the original Micronite filter’s formula to cut costs, since the original version was relatively expensive and Kent was reportedly handicapped by its premium price. It is also reported that Lorillard may have changed the Kent Micronite filter design to improve the cigarette’s taste and drawing qualities, as the original Micronite filter was perhaps too effective and was too dense to suit many smokers’ tastes. But, some believe Lorillard may have grown increasingly nervous about mounting asbestos-related health concerns in the 1950’s and quietly removed the asbestos from its product.












1954 Kent Micronite Asbestos Filter - Mouthpiece View




1954 Kent Micronite Asbestos Filter - Mouthpiece View





View of a vintage, 1954 Kent Micronite cigarette filter showing blue-colored fibrous crocidolite asbestos protruding from compressed layers of crimped crepe-paper filter media.

In the past, a specific type of crocidolite asbestos mineral was used as a filter media ingredient in atomic energy facilities, hospitals, and even inside certain gas-mask canisters due to its very high-efficiency for filtering very small particulate; yes, asbestos fiber itself was used to filter out breathing air from other contaminants (a tragic irony if there ever was one).

This same crocidolite-asbestos material was later formulated by P. Lorillard in the early 1950's for commercial application within their proprietary "Micronite" filter, only in Kent-brand cigarettes (from 1952 to1956). Lorillard eventually removed asbestos from the Micronite filter in 1956, but continued to make "NEW" reformulated non-asbestos Micronite filters for several years.









cigarette filter paper








cigarette filter paper




Wallmonkeys Peel and Stick Wall Decals - Stop Cigarette - 24"H x 20"W Removable Graphic






WallMonkeys wall graphics are printed on the highest quality re-positionable, self-adhesive fabric paper. Each order is printed in-house and on-demand. WallMonkeys uses premium materials & state-of-the-art production technologies. Our white fabric material is superior to vinyl decals. You can literally see and feel the difference. Our wall graphics apply in minutes and won't damage your paint or leave any mess. PLEASE double check the size of the image you are ordering prior to clicking the 'ADD TO CART' button. Our graphics are offered in a variety of sizes and prices.
WallMonkeys are intended for indoor use only.
Printed on-demand in the United States Your order will ship within 3 business days, often sooner. Some orders require the full 3 days to allow dark colors and inks to fully dry prior to shipping. Quality is worth waiting an extra day for!
Removable and will not leave a mark on your walls.
'Fotolia' trademark will be removed when printed.
Our catalog of over 10 million images is perfect for virtually any use: school projects, trade shows, teachers classrooms, colleges, nurseries, college dorms, event planners, and corporations of all size.










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DIGITAL BANDPASS FILTER - BANDPASS FILTER


DIGITAL BANDPASS FILTER - UNDER COUNTER WATER FILTER SYSTEMS - NELSON HYDRAULIC FILTERS.



Digital Bandpass Filter





digital bandpass filter






    bandpass filter
  • A band-pass filter is a device that passes frequencies within a certain range and rejects (attenuates) frequencies outside that range. An example of an analogue electronic band-pass filter is an RLC circuit (a resistor–inductor–capacitor circuit).

  • A filter that attenuates signals both below and above the desired passband.

  • An electric circuit designed to pass only middle frequencies.





    digital
  • displaying numbers rather than scale positions; "digital clock"; "digital readout"

  • Involving or relating to the use of computer technology

  • of a circuit or device that represents magnitudes in digits; "digital computer"

  • relating to or performed with the fingers; "digital examination"

  • Relating to or using signals or information represented by discrete values (digits) of a physical quantity, such as voltage or magnetic polarization, to represent arithmetic numbers or approximations to numbers from a continuum or logical expressions and variables

  • (of a clock or watch) Showing the time by means of displayed digits rather than hands or a pointer











digital bandpass filter - Spectral filtering




Spectral filtering of light-emitting diodes for fluorescence detection [An article from: Analytica Chimica Acta]


Spectral filtering of light-emitting diodes for fluorescence detection [An article from: Analytica Chimica Acta]



This digital document is a journal article from Analytica Chimica Acta, published by Elsevier in . The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.

Description:
The use of light-emitting diodes (LEDs) for fluorescence detection has recently gained much interest. The broad wavelength emission of LEDs requires spectral filtering that is not necessary when using a laser. For instance, filtering the LED light using a bandpass filter improves the signal-to-background ratio for riboflavin by a factor of 70. The bandwidth of the necessary bandpass filters affects both the signal and the background in these measurements. Fluorescence signal can be maximized with wider-bandpass high-transmittance filters. Background is governed by scattering of the LED emission light transmitted by two bandpass filters. When there is large crosstalk between the filters, the LED intensity is linearly related to the background. By estimating and optimizing the crosstalk between excitation and emission filters with a method presented here, the signal-to-background can be optimized. Bandpass filters should be selected with sharp on-off transition, strong blocking outside their transmitting region and the widest bandwidth with minimal crosstalk. Using optimized spectral filtering and capillary electrophoresis analysis, LODs of 50, 3 and 20nM are obtained for riboflavin, fluorescein and eosin Y, respectively. These results are superior to those reported in the literature for 5mW LEDs.










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Pogled-sa-Popovice




Pogled-sa-Popovice





Test digitalnog foto-aparata modifikovanog na prosirenu registraciju spektra i UV/IC delove. Ovo je preliminarni test. Predstoje probni snimci sa filterima od 330 do 1000nm, za sta su mi potrebni suncani dani (i slobodno vreme ;-))...
This is a quick test-shot taken with a digital camera modified for "full spectrum" imaging. When I get more sunny days (and free time ;-)), I`ll make some more shots using filters from 330 to 1000nm bandpass. ("Vidljivi spektar" refers to visible spectrum, and "Posle obrade" means processed image.)











Modified Yashica F521 Tests




Modified Yashica F521 Tests





Photo taken with a Yashica EZ Digital F521 that i have removed the lens from and replaced it with a lens with an 85 degree FOV and no infrared filter. Macro mode cleary still works and you can get a lot closer. My plan is to get an infrared filter to filter out the IR light, you can see under fluro light the colour is pretty good. I also want to try cutting up some exposed 35mm and make a bandpass filter and take some real infrared shots.









digital bandpass filter








digital bandpass filter




Celestron 94124 2-Inch UHC/LPR Telescope Filter






Light Pollution Reduction (LPR) Filters are designed to selectively reduce the transmission of certain wavelengths of light, specifically those produced by artificial light. This includes mercury vapor, and both high and low pressure sodium vapor lights and the unwanted natural light caused by neutral oxygen emission in our atmosphere (i.e. sky glow). The new ultra high contrast (UHC) LPR filter has improved contrast over the typical broadband filters. Sky background is darker, and contrast of emission nebulae are noticeably improved. The advanced technology coatings enable the filter to achieve an outstanding transmission of over 97% across the entire bandpass, with total blockage of prominent light pollution lines. The perfect filter for viewing nebula from light polluted skies, or for boosting the contrast of nebula from dark sky sites. In addition to it's optimum spectral and optical characteristics, the UHC/LPR filter offers important features that set it apart and result in the highest quality celestial views:










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