Main Article Content
An air pollution is a world-wide problem including with significant public health implications, particularly respiratory disease. Clinically evaluating respiratory disease using a spirometer is a standard procedure. The procedure iseasy for administers. Examining patients with the pulmonary disease, especially in both remote and rural areas, is an important screening step to avoid the worsening of their conditions, and even death. However, spirometer machines are expensive in Thailand, being an imported device. To overcome this situation, the objective of our research was to develop a spirometer device that is able to be manufactured locally. We tested our device against the Vyntus® Spiro USB PC spirometer for the comparative accuracy of our results. Thirty healthy participants (15 for our device and 15 for Vyntus® Spiro USB PC spirometer) were selected as the sample subjects. The results showed that the values of FVC, FEV1, FEV1/FVC, FEF25-75%, PEF and FEF-max obtained from both the spirometers were no statistically significant difference with independent t-test p-value of0.491, 0.151, 0.099, 0.110, 0.151, 0.143, respectively. In addition, the percentage difference of FVC, FEV1, FEV1/FVC, FEF25-75%, PEF, FEF-max was -3.61, -7.41, -4.59, -12.65, -9.59 and -9.92,respectively.In conclusion, the spirometer developed in ourproject provided lung function readings close to commercial spirometer values. Further development of the processing and displaying software is undertaken to improve the accuracy of the device for it. Thisis to be considered appropriate for future diagnostic use in patients with pulmonary disease.
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
 Bureau of policy and strategy.(2013) Summary reports of outpatient and inpatient. Bangkok: Ministry of Public Health Thailand. (in Thai)
 Po, J. Y., FitzGerald, J. M., & Carlsten, C. (2011). Respiratory disease associated with solid biomass fuel exposure in rural women and children: systematic review and meta-analysis. Thorax, 66(3), 232-239. doi: 10.1136/ thx.2010.
147884 thx.2010.147884 [pii]
 Halken, S., Host, A., Nilsson, L., & Taudorf, E. (1995). Passive smoking as a risk factor for development of obstructive respiratory disease and allergic sensitization. Allergy, 50(2), 97-105.
 Park, S. Y., Kim, H. R., & Song, J. (2014). Workers' Compensation for Occupational Respiratory Diseases. Journal of Korean Medical Science, 29, S47-S51. doi: 10.3346/jkms.2014.29.S.S47
 Reid, P. A., & Reid, P. T. (2013). Occupational lung disease. J R Coll Physicians Edinb, 43(1), 44-48. doi: 10.4997/ JRCPE.2013.111
 Occupational safety and health society, Sukhothai Thammathirat Open University. (2007). Occupational diseases, respiratory diseases, dermatitis and cancer. Retrieved April 24, 2015, from http://www.safety-stou.com/UserFiles/File/54106_unit11.pdf (in Thai)
 Thoracic Society of Thailand under Royal Patronage. (2002). Guidelines for Pulmonary Function Tests. Bangkok: Parbpim Ltd. (in Thai)
 Department of labor and welfare, occupational safety and health bureau. (2015). Occupational medicine center the northern Thailand. Retrieved April 22, 2014, from: http://www.oshthai.org/upload/file_linkitem
20110630074241_2.pdf. (in Thai)
 Goreke, U., Habibiabad, S., Azgin, K., Dogrusoz, Y. S., & Beyaz, M. I. (2016). The Development and Performance Characterization of Turbine Prototypes for a MEMS Spirometer. Ieee Sensors Journal, 16(3), 628-633. doi: 10.1109/Jsen.2015.2488104
 Ruppel, G. (2003). Manual of pulmonary function testing (8th ed.). St. Louis, Mo.: Mosby.
 Agarwal, V.V. (2008). Design and development of a low-cost spirometer with an embedded web server. J. Biomedical Engineering and Technology, 10(10):439-451.
 Trauth, M. H. (2010). Introduction to MATLAB. Matlab (R) Recipes for Earth Sciences, Third Edition, 11-36. doi: 10.1007/978-3-642-12762-5_2
 Maree, D. M., Videler, E. A., Hallauer, M., Pieper, C. H., & Bolliger, C. T. (2001). Comparison of a new desktop spirometer (Diagnosa) with a laboratory spirometer. Respiration, 68(4), 400-404. doi: 50534 [pii] 50534