Coggins Christopher R E, Merski Jerome A, Oldham Michael J
Carson Watts Consulting , King, NC , USA and.
Inhal Toxicol. 2013;25 Suppl 2:59-63. doi: 10.3109/08958378.2013.854434.
Recent technological advances allow ventilation holes in (or adjacent to) cigarette filters to be produced using lasers instead of using the mechanical procedures of earlier techniques.
Analytical chemistry can be used to compare the composition of mainstream smoke from experimental cigarettes having filters with mechanically produced ventilation holes to that of cigarettes with ventilation holes that were produced using laser technology.
Established procedures were used to analyze the smoke composition of 38 constituents of mainstream smoke generated using standard conditions.
There were no differences between the smoke composition of cigarettes with filter ventilation holes that were produced mechanically or through use of laser technology.
The two methods for producing ventilation holes in cigarette filters are equivalent in terms of resulting mainstream smoke chemistry, at two quite different filter ventilation percentages.
最近的技术进步使得香烟过滤嘴中（或其附近）的通风孔可以用激光制造，而不是采用早期技术的机械工艺。
分析化学可用于比较带机械制造通风孔的实验香烟的主流烟气成分与带激光技术制造通风孔的香烟的主流烟气成分。
采用既定程序分析在标准条件下产生的主流烟气中38种成分的烟气组成。
机械制造或使用激光技术制造过滤嘴通风孔的香烟的烟气组成没有差异。
在两种截然不同的过滤嘴通风百分比下，香烟过滤嘴中制造通风孔的两种方法在产生的主流烟气化学方面是等效的。
