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Packaged conveniently in a box of 10, they ensure you have a fresh filter ready whenever you need it

Faced regulatory scrutiny over marketing claims

The relative accuracy of PCP smoking data is comparable to international studies: a US study showed 85% concordance between tumour registry smoking records and electronic health records [37], an Australian study observed 82% agreement between medical records and self-reported smoking data [38], and a UK study reported 75.3% agreement between self-reported smoking status with primary care records [39]

For many Port Tobacco homes a hybrid approach is optimal: closed-cell at the rim joist, exterior foundation, and lower-level areas prone to moisture, paired with open-cell in interior wall cavities and attic areas where drying potential is desired