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A fixed zero-free strip changes the zero contribution qualitatively. If every nontrivial zero satisfies $\beta <1-c$, with fixed $0<c<1/2$, the same zero-count estimate and partial summation giveThe truncated explicit formula for the second Chebyshev function then yieldsTake $T=x^c$, or an admissible height of this size. The two contributions are bounded by the same order, proving the prime number theorem error from a fixed zero-free strip:In particular this is $O_{\epsilon }(x^{1-c+\epsilon })$ for every $\epsilon >0$. It is a power saving, stronger than the decay obtained from the logarithmic zero-free region. The triangle-inequality estimate of the zero sum explains the two logarithms; removing them would require additional information or cancellation, not merely the asserted zero-free strip.